Thorlabs’ INTUN™family of narrowband,cw lasers are designedfor demandingapplications such asmicroscopy and spectroscopy. Sixteen models spanthe 770–1650nm range and provide output power up to20mW. Custom center wavelengths (780nm–1100nm and1200nm–1650nm) are available upon request.
Thorlab’s narrowband PICO D Seriesof lasers are ideal for fiber optic test andmeasurement applications. Six modelsspan the 1260 – 1630nm range, whileproviding mode-hop free tuning andmore than 5dBm of output power.
Thorlabs’ SL1325-P16 tunable laser is based on an externalcavity semiconductor laser that has been specificallyoptimized for SS-OCT applications. The compact design,robust alignment, high repetition rate, and centralwavelengths availablemake this system ideal for many biological andmaterial scienceapplications.
Thorlabs has partnered with Stratophase to provide thisfamily of selectable wavelength, mid-IR lasers, which provideoutput repetition rates of 2kHz and typical pulse widths of~10ns. Theselasers are idealfor lab basedalignment and test applications.
The ECL5000D is an external cavity laser module for theTXP Platform that utilizes Thorlabs’ patented ECLTechnology to provide highstability, high output power,and smooth, continuous tuningover the 1519–1630nm range.
The ECL1525 Series ofbenchtop and OEM lasersprovide continuously tunable,mode-hop free operation overthe C & L Bands(1525–1611nm).
Thorlabs' tunable lasers are all basedon external cavity tunable lasertechnology with tuning ranges up
to 150nm. Since they are able tocontinuously tune or step between ITUgrid wavelengths, Thorlabs' tunable lasersare ideal for both test and measurement aswell as for research and development.Using our proprietary technology, allmodels exhibit mode-hop free tuning withwavelength resolution of 0.1pm andabsolute wavelength accuracy within±10pm. The highly stable output andquick tuning speed of our continuoustuning models allow the units to tune overtheir entire range in less than a second. Thelow source spontaneous emission (SSE)makes them an ideal source for testingfiber-optic components, spectroscopy, orbasic research applications. Our tunablelasers cover wavelengths ranging from770nm to 1650nm and are available withfiber output or with free-space collimatedbeams. The various models offer differentfeatures from benchtop units to OEMmodules for integrating into largerapplications.
ECL Technology
Thorlabs' models are based on externalcavity lasers (ECL), which are capable ofdelivering very high output powers incombination with a wide tuning range.
In addition, ECL technology has theadvantage of continuous, mode-hop free,tuning. ECL lasers are comprised of a laserdiode with high gain and a separate gratingthat is mounted on a pivoting arm to formthe cavity (see figure 1). To tune the laser'swavelength, the angle of the grating ischanged by turning the arm with anactuator. The positioning and alignment ofthe grating assembly and the actuatordesign are critical to optimal scanningperformance.
Scanning Capabilities
The patented inductive motor design ofour continuously tunable models enables asmooth and quick sweep over the fullwavelength range in both directions withperfect repeatability. Optional step modeoperation and true continuous lineartuning without any ripple result from this unique design.
Laser & ASE Systems
536 www.thorlabs.com
Figure 1
TUNABLE LASERS: OVERVIEW
Benchtop Systems • TXP Modules • OEM Modules
Input Voltage (V)
Input Voltage (V)
Input Voltage (V)
Note: Scale 10x Uncalibrated Graph
Wavelength Linearity of PICO D (OEM)
ECL Laser Structure
These lasers provide an excellent sweepperformance while being robust andreliable at the same time.
The waveforms below show theexcellent linearity of the ECL acrossthe entire tuning range.
Optical Heterodyne Interferometry is animportant measurement technique thatbenefit from Thorlabs’ continuously tunablelasers.
Laser requirements for this high-precisionmeasurement include smooth continuoustuning, high accuracy measurement, controlof the wavelength, low noise, and narrowlinewidth.
Our patented motor design enables a highlyconstant tuning speed. The constant sweepspeed (low acceleration) makes these laserssuitable for interferometric and heterodynemeasurements.
The acceleration during sweep (variation inthe tuning speed) is measured using awavelength locker (low finesse Etalon). Thewavelength locker signal provides evenlyspaced peaks (clock) in the frequency space(k-space). There are several methods toacquire data, which enables the calculationof the tuning speed and the acceleration.One method is to use the k-space clock todetermine the tuning speed, and the timefluctuations of the k-space clock todetermine the tuning speed variations(acceleration). In the figure to the right, wehave used (in addition to the k-space clock)the knowledge of the finesse of the Etalonto improve the time resolution of themeasurement. When using the knowledgeof the finesse, the time resolution of thetuning speeds and the measurement of theacceleration is limited to the samplingfrequency rather than the k-space clock.
Spectral Monitoring
The ECL tunable lasers provide anoutstanding building block in spectralmeasuring and monitoring. The waveformshows an HCN (Hydrogen Cyanide) scanusing Thorlabs' ECL technology. See pages851-857 for our gas cell products.
The impressive scan-to-scanrepeatability allows the user toaverage spectral features withoutsmearing (see figure to the right).
The INTUN Family is available with optional Fiber Optic Output.
Applications Characterization of Optical Components Spectroscopy Polarization Measurements Real-Time Process Monitoring General R&D
Plot of TL780 INTUN Laser Showing Optical
Power as a Function of Wavelength
Thorlabs offers a family of tunable lasers designed for demandingapplications such as spectroscopy. With sixteen models spanning thewavelength range of 770nm to 1650nm, this family covers thewidest spectral range of any of our tunable products. The heart ofthe INTUN system is based on the same technology used in thehigh performance PICO D tunable laser.
The T series is designed for swept wavelength applications and hasthe same patented motor design as the PICO D Series. These lasershave an analog interface of both wavelength and optical power forfast integration in the lab. The scaling factor for the wavelengthcalibration is -1V to +10V (minimum to maximum wavelength) andfor power is -1V to +10V (0 to full output power). The T Seriescomes with an intuitive control box that enables the user to sweepthe laser over the desired tuning range and to control the opticalpower without any external equipment.
All lasers in the INTUN family have reduced spontaneous emissionto further improve the laser performance. The INTUN has an SM1compatible thread on the output port and mounting holes for our30mm cage system to allow ease of use with our optomechanicalequipment. The output is a collimated free-space beam.
Selected models of the T and the B series are available with fiberoptic output. These models have a built-in isolator to reduce thesensitivity to external reflections and are available in both PM andSM versions with FC/APC output.
The INTUN B has the means to lock the wavelength to an externalwavelength reference such as a gas cell or a frequency comb. Thisproduct is a complete turnkey solution without the need foradditional electronic boxes. Contact [email protected] formore information on this application (see pages 851-857 for ourselection of gas cells).
Features Wavelength Ranges From 770-1650nm Optical Power: 5mW to >20mW 16 Models Instantaneous Linewidth: 120kHz (Minimum) SM or PM Fiber Output Available on Selected Models
Electric and Interface Specifications INTUN-TDC Input +5V/10W and ±15V/5W*Wavelength Set Input ±10VWavelength Fine Tune Input ±10VOutput Power Set Input -1V to +10VDigital Control 0-5VDigital Status 0-5VElectrical Connectors DC Input Voltage: 6-Pin
Digital and Analog I/O: 40-PinWavelength Output: BNC
Operating Temperature Range 15-30°CDimensions 170 x 87 x 142mm
Electric and Interface Specifications INTUN-BDC Input +48V/20WAnalog Modulation Input 2Vp-p
Analog Wavelength Output 0-4VElectrical Connectors DC Input Voltage: Rear Panel Socket
Digital Status: 0-5VInterlock: DB9
Communications: DB9 Null ModemAnalog Inputs: BNC
Operating Temperature Range 15-30°CDimensions 242 x 87 x 142mmPower supply and all required cables included.
The B series has a serial interface,providing remote digital functionality.For ease of use, the B series includesapplication software to allow operationover the RS-232 interface. Also,LabVIEW™ drivers are available forintegration into customer software.
Optical SpecificationsParameter -T -BWavelength Resolution 1pm 0.1pmWavelength Repeatability 1pm 1pmAbsolute Wavelength Accuracy ±50pm ±50pmWavelength Stability (1h/24hr) ±2pm/±10pm ±2pm/±10pmPower Resolution 0.1µW 25µW Spectral Linewidth 150kHz Max* 150kHz Max*Effective Linewidth 120MHz 1.5MHzCoherence Control 1GHz or 2GHz 1GHz or 2GHzSide Mode Suppression Ratio (SMSR) 45dBc Min 45dBc MinSignal to Source Spontaneous Emission Ratio (SSE) 70dB/nm** 70dB/nm**Signal to Total Source Spontaneous Emission Ratio (STSSER) 65dB 65dBOptical Isolation (Fiber-Coupled Versions) 60dB*** 60dB***RIN -140 (dB/Hz) -140 (dB/Hz)Tuning Speed ContinuousTL780 0-30nm/s 0-15nm/sTL980 0-30nm/s 0-15nm/sTL1300 0-100nm/s 0-50nm/sTL1550 0-130nm/s 0-50nm/sOptical Output: Collimated Free-Space Beam
PM or SM fiber (FC/APC)
GUI for Intun B Series Lasers
LabVIEW™ is a trademark of National Instruments Corporation.
* Measurement time <1ms.** All fiber-coupled versions
*** Peak isolation
* The controller supplies all voltages when used.
Single Mode & Polarization Maintaining 1310 to 1550nm
APC Fiber Patch CablesThorlabs offers an extensive line of patch cables andconnectors for your convenience in standard andcustom lengths, FC/PC and FC/APC terminations. See Page 1058
Thorlabs' PICO D family of OEM tunable ECLs allows for integration into larger or custom environments.The PICO D family is specially designed for swept wavelength applications and interferometricmeasurements. The laser has an outstanding tuning smoothness, which is a necessity in applications such asinterferometric optical component testing and high-resolution fiber sensing.
The PICO D features analog tuning and continuous mode-hop free tuning across more than 100nm in theO-, S-, C-, and L-bands (1260-1630nm). The standard product offers a typical output power of >5dBmacross the tuning range. The PICO D offers low SSE, providing a Signal to Total Source SpontaneousEmission Ratio (STSSER) of >65dB. This makes the PICO D an ideal source for testing opticalcomponents.
Thorlabs also offers an evaluation board for the PICO D module. The unit helps evaluate the performanceof the module and demonstrates how the PICO D can be easily integrated into other platforms such as test
and measurement instruments for optical telecom and optical sensing applications. The PICO series is ideal for fiber-sensor-basedtemperature and pressure monitoring in petrochemical facilities, refineries, oil wells, power plants, and bridges.
(24hr) ±10pmOptical Peak Power >6dBmOptical Power Over Entire Tuning Range >5dBmPower Resolution 0.1µWSpectral Linewidth 150kHz Max**Coherence Control OptionalSide Mode Suppression Ratio (SMSR) 45dBSignal to Source Spontaneous Emission (SSE) 70dBm/nmSignal to Total Source SpontaneousEmission Ratio (STSSER) 65dBOptical Isolation 60dBRIN -140 (dB/Hz)* Standard product, other wavelengths available upon request.* *Measurement time <1ms.
Electrical and InterfaceSpecifications Operating Temperature Range:
15-40˚C Optical Connector: FC/APC DC Power: +5V and ±15V Wavelength Set Voltage: ±10V Output Power Set Voltage:
-1V to +10V Digital Control and Status: 0-5V Electrical Connectors:
• 6-pin Power Rear Panel• 40-pin Electrical Rear Panel
Physical Size:49 x 93 x 273mm (W x H x L)
The evaluation board lets you control the PICO D using peak isolation BNC connectorsfor easy integration in the lab. Also, the evaluation board indicates the laserstatus with built-in LEDs. It works with any PICO D and INTUN-T laser.
The ECL5000DT benchtop tunable laser utilizesThorlabs’ patented ECL technology, providing high
stability, high output power, and smooth continuous tuningover the 110nm tuning range. The benchtop unit is comprised of aThorlabs PICO D series tunable laser packaged in a rugged TXP5004chassis. The microprocessorcontrolled unit providesboth digital and analogmodes of controlling theunit. In the analog mode,the wavelength and powercan be controlled byapplying a voltage to thefront input jacks. This canbe a DC voltage for stepcontrol or a modulatedsignal for sweeping eitherthe wavelength, the power,or both. The digitalcontrol is achieved throughthe USB interface. Theeasy-to-use interactive GUI(Graphical User Interface)allows direct tuning, steptuning, and selectable sweep operation. The laser is ready for use assoon as the USB cable, included with the unit, is plugged in.LabVIEW™ and LabWindows™/CVI drivers are provided for thosewho need to integrate the programming of the tunable laser with otherequipment. These two methods of tuning provide a powerful andflexible control capability to meet the most demanding testingapplications to synchronize with external events.
The ECL5000DT also provides a trigger-in and a trigger-out jack.The output voltage at the analog out jack is proportional to theoptical wavelength.
ECL5000D TXPMODULE
COMES COMPLETE WITH LAPTOPAND INSTALLED SOFTWARE!
Highlights Mode-Hop Free Tuning Internal and External Wavelength and
Power Modulation Smooth and Continuous Tuning 1519-1630nm Tuning Range
Continuous Sweep and Step ModeOperation
High Output Power USB with Intuitive Graphical
Interface
THE PMD5000, a versatilePMD and polarization analysissystem, is an application exampleof an ECL5000D in a complexTXP-based test and measurementsystem (see pages 984-987).
100nm: <800msWavelength Resolution 1pmWavelength Repeatability ±5pm (1 Hour)Wavelength Accuracy ±15pmWavelength Stability ±5pm** (1 Hour)WavelengthModulation Bandwidth 100HzPower Repeatability ±0.1dB (1 hour)Optical PowerModulation Bandwidth 100kHzOptical Peak Power >6dBmOptical Power >2dBm (typ.)Over Tuning Range (0dBm min.)Spectral Linewidth FWHM <150kHz***SMSR >50dBcSTSSER >65dBOptical Isolation 60dBRIN -140dB/HzOptical Interface FC/APC****Analog Input Voltage Range ±10VInput Power 100-240VAC 50-60 HzDimensions ECL5000DT 168 x 133 x 315mmDimensions ECL5000D 101 x 129 x 270mm* Standard product, other wavelengths available upon request.** ∆T ±0.5˚C***Measurement time 1ns.****Peak isolation
ITEM# $ £ € RMB DESCRIPTION
ECL5000D $22,500.00 £ 14,175.00 € 20.925,00 ¥ 214,875.00 TXP Linear Tunable Laser ModuleECL5000DT $25,000.00 £ 15,750.00 € 23.250,00 ¥ 238,750.00 Complete Benchtop Linear Tunable Laser Including Laptop
The PMD5000 measurement system consists of threeparts: the tunable laser source ECL5000D, the fastdeterministic polarization controller, and either our fastor our high dynamic range polarimeter. This systemprovides extensive measurement and analysis ofPolarization Mode Dispersion on components, opticalfibers, and installed optical systems that are eitheractive or passive, or broadband or narrow band. ThePMD5000 is also capable of determining PolarizationDependent Loss (PDL) and Polarization Dependent Gain (PDG).
The system uses the Jones Matrix Eigenanalysis (JME) method to ensure accuracy when making measurements on a large variety ofoptical elements. Key components of the JME are the tunable laser detector, ministic polarization controller, and the DPC5500.(Refer to page 979 for more information).
Clean and FastThe core of the ECL5000D is the PICO D tunable laser. The PICO D, with lownoise and fast linear tuning characteristics, is a natural choice for integration intooptical parameter measurement instruments such as the PMD5000 System.
High demands on fiber optic equipment require reliable testing, and the sourcemust not impose limits on the subject being measured.
Range and PowerThe tunable laser provides continuous, mode-hop free tuning. It is available inseveral models spanning the 1260-1630nm range and each model has more than110nm of tuning range. With a Signal on Total Source Spontaneous EmissionRatio (STSSER) specification of >65dB, the PICO D provides plenty of marginwhen measuring PMD and PDL, for example.
Accurate and Adaptable The tunable laser provides outstanding performance with a wavelength resolutionand repeatability of 1pm each and a one-hour wavelength stability of ±2pm. Thisis important for demanding applications such as polarization measurement (JME)where the PMD5000 System measures the optical transfer function.
PMD and PDL analysis of fibers and broadband components can be performedwith this model. This includes the PMD measurement of passive components(couplers, isolators, and narrow bandwidth components such as optical filters, Bragg gratings, and OADM), and active components (EDFAs and PDFAs).
The OEM Solution
Cost effectiveness and quality of light areequally important. When selecting a TunableLaser Source (TLS), one must consider thefollowing: Wavelength Range: The Wider the
Range, the Lower the Risk For NeedingMore Than One Source
Tuning Speed: The Faster the Sweep, theMore Units That Can Be Tested OverTime
Power: High Output Means the Abilityto Test High-Power Components and thePossibility of Light Sharing AmongMultiple Devices Simultaneously
Price: The TLS Must Have a ModularDesign to be Easily Integrated Into theTest Equipment, Which Would Avoid theNeed for Separate Benchtop TunableLasers
PMD5000 SERIESComplete PMD/PDL Analyzation System
(Laptop Included)
Using the PICO D Tunable Laser for Polarization MeasurementTunable Lasers
Femtosecond Laser
WDM Laser Sources
BenchtopLaser Sources
HeNe Lasers
ASE Sources
Terahertz
Electro-OpticModulators
542
PMD & PDL Measurementsof Broadband and NarrowBandwidth Devices
The ECL1525 tunable laser offers continuously tunable mode-hop-freeoperation over the C- and L-bands (1525-1611nm) with a linewidth of200kHz (0.002 pm @ 1550nm). The ECL1525 is a self-contained, digitallycontrolled, continuously tunable laser with wavelength-locking capability onthe ITU grid. The system is comprised of a hermetically sealed µECL moduleand a control/interface board housed in a shock resistant 111mm x 47mm x170mm enclosure. The unit is controlled from the RS-232 interface andpowered by a 5V supply included with the unit.
The unit provides an output of 4dBm (>2.5mW) optical power and isdesigned to meet the most demanding test applications. The digital tuningprovides the advantage that the wavelength accuracy is not dependent on thequality of user-supplied external tuning voltages. Supplied with the unit is apowerful intuitive Graphical User Interface program to run on your PC. Theprogram allows simple connection on the RS-232 cable to the unit.
Thorlabs ECL Technology for Sensing andTest & Measurement Applications
Benchtop & OEM Tunable Lasers
Graphical User Interface (below) is supplied with the ECL1525.
Wavelength Tuning Time, RandomChannel Change: 1s Typical
Wavelength Locking: ITU Grid 500GHz
Wavelength Resolution: 2pm(0.05pm in the Fine-Tuning Mode)
Absolute Wavelength Accuracy:40pm, (10pm at ITU Channel)
Wavelength Stability (1h): ±10pm Max Mode-Hop Free Range: Full Range (nm) Spectral Linewidth FWHM:
<200kHz Max* Output Power Over the L-Band:
+10dBm min (10mW) Output Power Over Tuning Range
(C and L): +4dBm Min (2.5mW) Power Stability (1h): ±0.02dB Max Side Mode Suppression Ratio:
>40dB Typical Signal to Source Spontaneous
Emission Ratio: 30dB (Typical) Optical Isolation:
55dB @ 1590nm (Typical) Temperature Specifications:
Operating: 5 to 40°CStorage: -25 to +70°C
Fiber Type: PM Fiber or SM Fiber Connector (Standard): FC/APC Interface: RS-232 (DB9) Physical Dimensions:
113 x 50 x 180mm (ECL1525) Input Voltage: 5VDC ± 0.25V Power (Max): 10mW
Features Continuously Tunable Over C- and L-Bands Mode-Hop Free Over Full Range Enables Fast and Accurate Testing and Sensing for Field
Applications Optical Power >4dBm (2.5mW) Robust Design for Continuous Operation MSA Compatible Hermetically Sealed Cavity Module
The ECL1525 can be controlledin accordance with the TunableLaser MSA standard using RS-232or via a user’s PC. The lasers aredelivered with a software GUI thatallows control of power andwavelength, as well as reading ofstatus signals.
A selection of LabVIEW™ driversmake it possible for the user todevelop their own specificmeasurement applications. Anapplication example is included onthe CD as well as drivers fordevelopers using C.
The ECL1525M consists of a sealed optical module with a pigtail output (FC/APC) and a control PCB.The electrical interface is a 40-pin connector. Included in the system is a CD-ROM that has stand-alonecontrol software, LabVIEW™, and C-drivers. When it is combined with the evaluation kit ECL1525-EK,the ECL1525M has the same electrical functionality as the ECL1525 in Option 1.
Benchtop and OEM Package StylesThe ECL series is available in two different forms: a benchtopversion and an OEM version for system integration. Both areavailable with either single mode or polarization maintainingfibers.
The ECL1525M is the hermetically sealed module and acontrol PCB. This laser is easily integrated into test andmeasurement instruments for optical telecom and opticalsensing applications. Control is handled in accordance withthe MSA standard using an RS-232 interface. To get startedquickly with system integration, theEvaluation Kit (ECL1525-EK) isavailable. It consists of an evaluationboard, a power supply and connectingcables. This kit adds a higher level offunctionality to the ECL1525M.
For more detailed application information, including specific connector pin-outs and functions,custom mechanical configurations, or software, visit our website at www.thorlabs.com. For moredetails or questions about customization, contact our tunable laser experts [email protected].
These products are intended for use as components within a system; it is assumed that all lasersafety regulations will be adhered to as part of the integration process.
O
ption2O
The ECL1525 is a benchtop unit with an FC/APC bulkhead optical output, LED indicators, and trigger output on the front. On the back of the unit are inputs for a 5V power supply, RS-232 serial interface, analog modulation, andinterlock. Also included with the system are a 5V power supply, a communication cable, a CD-ROM that has stand-alone control software, LabVIEW™, and C-Drivers.
T O O L SO F T H ET R A D E
FiberPort, Ultra-Stable Fiber Optic Collimator
See Pages 1017-1019
ECL1525-EKEvaluation Board
2 Package Styles for Rapid System Integration
Flexure Design With Five Degrees of Freedom Easy Alignment of Fiber to Aspheric Lens Thorlabs’ Standard A, B, or C Coating Available
Frequency Swept Laser Source…Page 1 of 2Thorlabs' Frequency Swept Tunable Lasers are specifically designed for SS-OCT applications. Swept Source Optical CoherenceTomography (SS-OCT) and Optical Frequency Domain Reflectometry (OFDR) provide real-time high resolution cross-sectional imagingof turbid media. These applications require a specially designed laser source that can sweep a wide wavelength range at very high speeds. Awide spectral tuning range is required for high axial resolution OCT images, and a high sweep speed is needed to obtain real-time 2D and3D OCT imaging speeds. Thorlabs now offers a variety of frequency swept laser sources based on an external cavity semiconductortunable laser designed and optimized for SS-OCT and OFDR applications.
Now available with center wavelengths at 850nm, 1050nm, 1325nm, and 1550nm, these broadband frequency swept lasers are a versatilefamily of specialty laser sources covering the spectral regions most often used in OCT applications. The compact design, robustalignment, and high repetition rate make these systems ideal for both research and OEM applications. Recently redesigned, these lasersnow offer even greater stability in a smaller desktop housing.
Figure 2: The Power Monitor signal accessible from the rearpanel shows optical power as a function of time.
Figure 3: Spectrum of the (SL1325-P16) swept laser showingan active wavelength tuning range of 155nm centered around1325nm.
The external cavity laser consists of a single gain element, where one facet servesas an end mirror for the cavity and the extended cavity is comprised of a singlecollimating lens and a Cat-Eye wavelength selection device.
The intra-cavity side of the semiconductor gain element is AR coated, providinga residual reflectivity of less than 10-4 thus allowing for the efficient formation ofan extended cavity. Wavelength selection is achieved using a diffraction-gratingmounted on a scanner with a focusing lens, mirror, and slit assembly providingactive wavelength selection. The focusing lens and slit/mirror assembly areseparated by the focal length of the lens. This configuration is commonly referredto as a Cat-Eye and is highly insensitive to angular misalignment. Output fromthe laser cavity is coupled into a fiber, using a lens system containing an isolatorthat prevents optical feedback into the cavity.
This design enables a robust alignment due to the cat's eye configuration of theback-reflector, which provides superior long-term stability compared to designswith a quasi-collimated beam on the laser cavity back-reflector.
All the Thorlabs swept source lasers are easily integrated into OEM systems.This family of swept source lasers is available in key wavelengths used formany biological and material science applications. For ophthalmic systems,the sample is mostly water, making the SL850-P16 and the SL1050-P16ideal due to the minimal absorption of water in the 700 to 1000nmspectral range. In many other biological tissue samples, wavelengths of1000nm or longer provide enhanced imaging and deeper penetrationdepths. In addition, the availability of robust inexpensive optics andcomponents optimized for telecom wavelengths make the SL1325-P16 andSL1550-P16 lasers ideal for other imaging and OEM system applications.
850nm, 1050nm, 1325nm, and 1550nm Fast Wavelength Sweep Rate: 16kHz Single Mode Fiber Output Compact Housing:
12.4" x 11.6" x 5.8" (315 x 295 x 146mm)
Figure 4: At fast-frequency sweep speeds, the laser frequency variessinusoidally in time. For OCT imaging, accurate and reliable recalibrationof the interference output is required so that the samples are equidistant infrequency. Thorlabs’ swept source laser is ideal for this application. The laserfeatures a built-in Mach-Zehnder Interferometer (MZI) with balanceddetector output, which can be used as a frequency clock because the zerocrossing of the interference fringe signal is equally spaced in opticalfrequency (k-space). This clock, while useful for resampling OCT datasets, can also be used to synchronize other measurements.
The rear panel provides connections for thepower monitor signal (Fig. 2), the MZI clock(Fig. 4), the sweep trigger, and the RS-232 port.
Note: Specification subject to change due to on going engineering improvements.
Features Turnkey, Wavelength-Selectable IR Lasers Two Models With Wavelengths of 1400-4150nm Simple User Interface Typical Output Power:
– Signal: 20 to 40mW– Idler: 10 to 20mW
Signal Wavelength Selection in 1nm Increments Pulse Length: ~10ns Repetition Rate: ~2kHz User-Selectable Filters to Switch Between Signal,
Idler, and Unfiltered OPO Output
Applications “IR-HeNe” for Optical Component Alignment and Testing Low-Cost Test and Measurement
– IR Optical Element Characterization– Waveguide Characterization– CCD Array Testing
Low-Cost Access from 2400-7150cm-1
IntroductionThorlabs has partnered with Stratophase to introduce a new family of selectable wavelength mid-infrared lasers, specifically designedfor lab-based alignment and test applications. The SSOPO optical parametric oscillators rely on Stratophase's Periodically PoledLithium Niobate (PPLN) Technology, allowing a wide range of wavelengths to be achieved easily.
The StratoLase sources allow users to select the desired operating wavelength using simple controls located on the front panel of thesystem control enclosure. The system then automatically tunes the phase-matching conditions of the OPO to give the desired output.
This series offers the user turnkey access to an impressively wide range of wavelengths, making them an invaluable multipurpose toolfor any lab-based IR alignment or test activities.
Two versions are available: the SSOPO2 (with a wavelength range of 1400-1545nm) and the SSOPO3 (with a wavelength range of1540-1780nm). As an unspecified extra, the SSOPO3 allows access to wavelengths past 1780nm with up to a 2µm range. Bothsystems can also be configured to allow access to the pump laser at 1047nm bypassing the nonlinear conversion in the PPLN crystal(optional P1047).
Operation OPO System, including pump laser, starts automatically upon turn of a key. Stand-alone system, no additional PC control required. User can select either signal or idler wavelength on control panel. Both output wavelengths are intrinsically linked through energy
conservation with the pump wavelength. Controller calculates and sets automatically required temperature and grating settings. Output can only be enabled after phase
matching conditions are achieved for selected wavelength pair. User-operated filter selector allows access to signal or idler or the unfiltered OPO output (signal, idler, depleted pump).
Optical Parameter Oscillator System – StratoLase SSOPO SeriesPage 1 of 2
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1000
2000
3000
4000
5000
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SSOPO2 SSOPO3
SSOPO3 Near Degeneracy,Unspecified Output Available
Femtosecond Laser Sources From Menlo SystemsFemtosecond Fiber LasersMenlo Systems' fiber-based femtosecond laser sources integrate thelatest achievements in fiber technology into easy-to-use instrumentsfor R&D and industrial applications.
The fiber-based ring cavity uses a highly doped erbium fiber asgain media, which has a broad emission spectrum around 1560nm.The active gain medium is pumped by fiber-coupled laser diodechips. The pump modules are telecom-rated components
with an FIT rate specified to be <30 (the failures-in-time rate givesthe number of failures per billion hours), ensuring long lifetimeand trouble-free operation.
Modelocking is achieved by nonlinear polarization rotation. Thistechnique for passive modelocking is based on the nonlinear Kerreffect. Intracavity polarization is controlled and maintained withthe help of a microcontroller, which ensures stable modelockingover long periods, slowly changing ambient conditions, vibrations,and other external noises and disturbances. The laser head istemperature stabilized, which further reduces the effects of changesin the temperature of the surrounding environment. These featuresensure stable operation over 24 hours, 7 days a week.
Menlo Systems developed the femtosecond fiber lasers to serve aspump sources for its optical frequency synthesizers.
The “Comb” laser models were engineered for high-precisionmetrology applications.
The benefits of our competitively priced “Fiber” models are mostobvious in the context of industrial applications where reliability,the compact size, scalability, economic use, and lifetime becomekey factors.
Parameters at a Glance Wavelength: 1560nm or 780nm Average Output Power: 10mW up to 275mW Repetition Rate: 100MHz or 250MHz (Others
Upon Request) Pulse Width: Sub-150fs Down to 50fs Optical Output: Fiber-Coupled and Freespace
Output Ports
MenloSystems Strategic PARTNERS PROGRAMStrategic PARTNERS PROGRAM
See Page 1103
Features and Benefits Truly Turnkey Operation by Self-Starting
The 100MHz C-Fiber and C-Comb models are state-of-the-art laser modules for cutting-edge researchapplications and OEM integration for the photonicsindustry.
There are several options available for the 100MHzC-Fiber lasers:
• The high-power and amplified models haveaverage output power up to 275mW and pulsewidth down to 50fs.
• The Sync models have variable cavity length,which enables tuning of the repetition rate overa 400kHz range; an integrated stepper motorallows for coarse adjustment, and with the helpof a piezo actuator, the repetition rate can befine-tuned and locked to an external referencefrequency.
For details on the Synchronization ElectronicsRRE100, see page 554.
Applications Telecommunication Information Technology Instrumentation Diagnostics and Imaging in Biology and
Medicine Ultrafast Spectroscopy
THz Pulses Generated From Photoconductive AntennasUsing a C-Fiber HP Laser, Measured Over 9 HoursA new THz time-domain spectrometer based on MenloSystems’ high-power femtosecond fiber laser andphotoconductive antennas was developed at the Institutefor High-Frequency Technology of the Technical Universityof Braunschweig, with the cooperation of the FraunhoferInstitute for Telecommunications of the Heinrich-Hertz-Institute in Berlin. The system has excellent long-termstability and is a promising alternative for existing THzspectroscopy systems based on solid-state lasers.
CF1560
For local and updated pricing, please contact
Menlo Systems, Inc. in America (+973-300-4490),
Menlo Systems GmbH in Europe (+49-89-189-166-0),
or Thorlabs Japan, Inc. in Asia (+81-3-5977-8401).
Menlo Systems has introduced a family of high-repetition rate fiberlasers engineered for high-precision metrology applications. With arepetition rate of 250MHz, the M-Comb delivers the highestfundamental repetition rate available for a femtosecond fiber laser.
The high repetition rate offers several fundamental advantages foroptical frequency measurements. It entails larger mode spacingbetween the frequency comb modes of the modelocked laser,which ensures easy and straightforward frequency measurements.In addition, the higher optical power per comb mode givesimproved signal-to-noise in the beat with the external frequency tobe measured.
The repetition rate of the M-Comb is coarsely tunable over a2.5MHz range. It can be fine-tuned and locked using a piezoactuator.
The carrier envelope offset frequency can be coarsely adjusted within the free spectral range of 250MHz using an intracavitywedge; modulation of the pump power allows for fine-tuning andstabilization. With an average optical output power of more than60mW, the M-Comb is capable of seeding up to three amplifiers.The spectral bandwidth supports sub-150fs pulse duration.
The M-Comb laser is a turnkey system built using telecom-ratedcomponents. Its release signifies another step that Menlo Systemshas made to bring the benefits of fiber technology to its patented,Nobel-Prize winning frequency combs for challenging metrologyapplications.
There are several options available for the 250MHz fiber lasers:
• The amplified model has an average output power up to420mW and pulse width below 90fs
• The Sync laser models have variable cavity length
For details on the Synchronization Electronics RRE100, see page 554.
Applications Optical Frequency Standards Absolute Distance Measurements Optical Clockworks Low-Noise Microwave Synthesis Transfer of Ultrastable Timing Signals and
Specifications for MF1560-C Wavelength: 1560nm ±20 nm Output Port: 3 Single Mode Fiber Coupled Ports Average Output Power: >20mW in Each Port Spectral Width: >25nm Pulse Width: <90fs
(Measured at Output of EDFA Amplifier) Repetition Rate: 250MHz Rep. Rate Tuning Range: >2.5MHz CEO Frequency Tuning: >250MHz Line Voltage: 110/115/230VAC Line Frequency: 50/60Hz Power Consumption: 120VA Operating Temperature: 22 ±5°C Storage Temperature: 10 to 40°C Dimensions Laser Head: 413 x 90 x 178mm Dimension Control Unit: 448 x 132 x 437mm Weight Laser Head: 8kg Weight Control Unit: 10kg
An optical frequency comb system based on femtosecondfiber laser with a stabilized, octave-spanning spectra enablesmeasurement of optical frequencies with unprecedentedaccuracy and flexibility.
For more information on the Optical Frequency Synthesizers,see pages 1103-1105.
MF1560-C
For local and updated pricing, please contact Menlo Systems, Inc. in America (+973-300-4490), Menlo Systems GmbH in Europe (+49-89-189-166-0),or Thorlabs Japan, Inc. in Asia (+81-3-5977-8401).
The fiber laser models, which have a central wavelength in thevisible spectral range, find their way into a growing number ofapplications where solid-state lasers were formerly used as lightsources. Due to its compact design, excellent long-term stability,and superb price-performance ratio, these lasers have the potentialto become laboratory workhorses for the next generation ofultrafast photonics research and industry.
The fundamental wavelength at 1560nm of the Erbium-dopedfiber laser can be effectively converted to 780nm via frequencydoubling in a Periodically Poled Lithium Niobate (PPLN) crystal,which offers higher nonlinearity and therefore high-conversionefficiency, when compared to conventional wavelength conversioncrystals. The short optical pulses allow high efficiency in singlepass configuration.
Running, Over 1 Hour) Line Voltage: 110/115/230VAC Line Frequency: 50/60Hz Power Consumption: 120VA Operating Temperature: 22 ± 5°C Storage Temperature: 10–40°C Dimensions Laser Head: 415 x 110 x 350mm
(16.3" x 4.3" x 13.8") Dimension Control Unit: 448 x 132 x 437mm
(17.3" x 5.2" x 17.2") Weight Laser Head: 18kg (39.6lb) Weight Control Unit: 10kg (22lb)
Applications Multi-Photon Imaging 3D Micro-Fabrication Based on Two-Photon
Polymerization Ultrafast Spectroscopy THz Generation Seeding of Amplifiers
Scanning electron microscope images of a bulk structurewere fabricated by two-photon polymerization using a C-Fiber 780nm laser.
These samples were fabricated at the Laser ZentrumHannover in Germany. The structure consists of parallel linesat a separation distance of 0.5µm – separate lines are stillvisible on the surface, indicating that the lateral resolution issuperior.
For more informationon the 250MHz lasermodels with output at780nm, please visitwww.thorlabs.com.
CF780
For local and updated pricing, please contact Menlo Systems, Inc. in America (+973-300-4490), Menlo Systems GmbH in Europe (+49-89-189-166-0), or Thorlabs Japan, Inc. in Asia (+81-3-5977-8401).
3_Femtosecond Laser 550-555.qxd.P 7/17/07 8:29 AM Page 553
Repetition Rate Synchronization: RRE100The Menlo Systems RRE100 provides state-of-the art phase lockelectronics to synchronize your pulsed laser sources with the highestaccuracy. It is a complete, user-friendly system that allows for plug-and-play use. The RRE100 has been field tested in the highly demandingmetrology applications of our patented, Nobel-Prize winning OpticalFrequency Synthesizer technology.
For custom reference frequencies, adjustable offset, or synchronization toa tunable repetition frequency, please call tech support at your local office.
Technical Specifications RMS Timing Jitter: <200fs (10Hz–1MHz) or
Same as Reference, Whichever Applies First* INPUTS
– External Reference Input: 10MHz**(Provided by Customer) Signal Level: 5–10dBm
– Repetition Rate Input: Signal Level -20 to -10dBm
OUTPUTS– Repetition Rate Signal: Amplified,
Can be Directly Connected to a FrequencyCounter, BNC
– Stepper Motor Signal: Stepper MotorControl, Sub-D, 9-pin
– Piezo Signal: Piezo Control, BNO– Error Signal: Error Signal for Monitoring,
BNC Power Requirements: 110/220V Storage Temperature: 0–40°C Dimensions: 449 x 148 x 317mm
(17.7" x 5.8" x 12.5") Weight: 7kg (15.4lb) Remote Control Unit: Can be Connected to a
PC Via the RS-232 Interface* Values specified for the Sync femtosecond fiber laser models
of Menlo Systems GmbH. Please contact us when stabilizinglasers from other manufacturers to optimize performance ofRRE100.
** Please contact us for custom reference frequencies.
Features Fully Automated One Button Solution Phase Locks Laser to a Fixed Repetition Frequency
Synchronized to External 10MHz Reference
ApplicationsSynchronize your pulsed laser source to a master clock, eitherfrom the radio or optical domain. Metrology
– Allows for generation of stabilized frequency combs. The RREhas been developed for and is an integral part of the MenloSystems Optical Frequency Synthesizers FC8004 and FC1500.
Accelerator Facilities– Allows for electro-optical sampling of particle bunches by
synchronization of light sources to particle beams. Pulsed X-ray Facilities
– Allows for seeding free-electron lasers and for experimentalsample excitation.
Ultrafast Time-Domain Spectroscopy– Minimizes the relative jitter between the pulses of two or more
light sources.– Opens up the high-speed asynchronous optical sampling
(ASOPS) technique.
Repetition Rate Drift of a Free-Running C-Fiber Synchronized Repetition Rate of C-Fiber Laser
ITEM# PRICE DESCRIPTION
RRE100 CALL Repetition Rate Synchronization of Pulsed Laser to 10MHz Frequency Ref.
*The RRE100 electronics is compatible with all Sync laser models
For local and updated pricing, please contact Menlo Systems, Inc. in America (+973-300-4490), Menlo Systems GmbH in Europe (+49-89-189-166-0), or Thorlabs Japan, Inc. in Asia (+81-3-5977-8401).
Pump Laser Recommendation– Diode Pump Solid State Laser at 532nm or 515nm– M2≤1.1– Min. Power Requirement: 6W
ITEM# PRICE DESCRIPTION
FSL1G Call Octavius, 1GHz Ti:Sa Few Cycle Oscillator
Features Fastest Laser at 1GHz Octave Spanning Spectral Bandwidth Unique Double-Chirped Mirror Design Robust Design With a Compact Footprint Temperature and Environmentally Stabilized
Housing Other Repetition Rates Available Upon Request
Applications Frequency Metrology Phase Sensitive Nonlinear Optics Amplifier Seeding, Particularly OPCPA Attosecond Pulse Generation Pump Probe Experiments such as Asynchronous
Optical Sampling (ASOPS)
The unique, ultrafast laser from Menlo Systems offers an octavespanning spectrum at a repetition rate of 1GHz while maintaining apulse width below 6fs. The wide spectrum allows for carrier offsetfrequency stabilization without external spectral broadening. The highrepetition rate is useful for high cycling pump-probe experiments andfrequency comb applications. Additional applications include biologicalprobing and imaging, amplifier seeding, particular optical parametricchirped pulse amplifiers (OPCPA), and attosecond pulse generation.
TechnologyThis laser cavity incorporates double chirped mirrors (DCM), which arerequired for group delay control with high precision over an octave widebandwidth. The design of these DCMs features more than 100individual layers, which guarantee a smooth and well-behaved dispersionmanagement.
The spectral bandwidth required to provide such short pulses is greaterthan the gain spectrum of the Ti:Sapphire laser medium. The highintensity of these short pulses induces a strong nonlinear Self-PhaseModulation (SPM), which creates additional intracavity broadeningbeyond the gain bandwidth of Ti:Sapphire. This cavity exploits theinterplay between strong SPM in the Ti:Sapphire crystal and thedispersion generated by the DCMs to provide stable ultra-short pulsesnot possible with standard cavity designs. The spectral content at oneoctave of bandwidth enables a beat detection that is robust and longterm, with an f/2f carrier envelope offset frequency that has more than35dB signal-to-noise ratio in a 100kHz bandwidth.
Mechanical DesignThe system is engineered to incorporate ease-of-use and mechanicalrobustness in order to maintain performance specifications and stabilityeven in non-laboratory environments. Unlike typical designs, which usetraditional translation stages for tuning and alignment, our system uses aunique flex stage design. By using a monolithic design, which eliminatesmultiple materials typically used for springs, bearings, and frames,unprecedented accuracy and repeatability are achieved. A rigid, thermallystabilized platform provides a dust-tight housing and a solid base forrobust environmental operation.
Acknowledgements: The unique DCMs incorporated inthis laser cavity were developed in close collaboration withProf. Franz X. Kärtner at the Massachusetts Institute ofTechnology.
For local and updated pricing, please contact Menlo Systems, Inc. in America (+973-300-4490),
Menlo Systems GmbH in Europe (+49-89-189-166-0), or Thorlabs Japan (+81-3-5977-8401), Inc. in Asia.
Our PRO8000 system provides anoutstanding platform for eight-channelDWDM laser sources; it has a number
of preconfigured offerings and acomplete range of laser source modulesfrom which to choose. Together thesemodules cover the full S-, C-, and L-Bands of the ITU Grid* (1491-1612nm).
The PRO8000 DWDM laser modulesoffer precise tunability, long-termwavelength and power stability, andadjustable coherence control, makingthem ideal for both active and passiveDWDM component testing as well asmultiwavelength transmissionexperiments. These features are possibleby combining the sophisticated laserdiode control circuit designed by ourexperienced instrumentation groupwith high performance DFB lasers.
TXP5000 Modular Laser System
The TXP5000 system is now availableas a multichannel laser source platformwith the addition of our LS5000 seriesof DWDM laser source modules.Populating a TXP5016 chassis with up to sixteen DWDM DFB laser
source modules produces a versatileand easy-to-use multichannel laser source system when combinedwith the outstanding features of ourTXP platform.
The LS5000 DWDM laser modules forthe TXP5000 Series systems offerprecise tunability, as well as long-termwavelength and power stability.Adjustable coherence control makesthem ideal for both active and passiveDWDM component testing as well asmultiwavelength transmissionexperiments.
These WDM laser modules are ideallysuited for all DWDM applications,ranging from test systems for fiberoptic DWDM components andEDFA production to multi-laseroptical sources for DWDMtransmission experiments.
Additional Modules Include Optical Switches and Sensors
Sophisticated Control Features
See Pages 558-559
DWDM Laser Modules for the PRO8 Series
Cover the Full S-, C-, and L- Bands (1491-1612nm)
Provide Precise Tunability, High Wavelength, and Power Stability
Feature Adjustable Coherence Control and Internal Modulation
Ideal for Component Testing and Multiwavelength Transmission
Experiments
See Pages 560-563
LS5000 DWDM Laser Sources for TXP5000 Series
Offers Precise Tunability, as well as Long-Term Wavelength and
Power Stability
Adjustable Coherence Control
Ideal for Active and Passive DWDM Component Testing
and Multiwavelength Transmission Experiments
See Pages 564-565
The PRO8 Modular System Platform andLaser Modules is a scalable system forcomponent testing and multi-wavelengthtransmission measurements in the S-, C-, andL- Bands. In addition to laser modules, theplatform supports optical switch, TECcontroller, current controller and sensormodules with plug-and-play compatibility.The control parameters are accessible from thefront panel and higher levers commands areavailable when the system is run through theIEEE-488.2 interface via the included divers.
The TXP5000 Modular Laser Platform is ascalable platform with a configuration thatallows modules to be swapped out withoutinterrupting the function of the remainingmodules. In addition, all of the DWDMseries laser modules provide an adjustablecoherence length control, which makes theTXP5000 platform ideal for testing activeand passive DWDM component testing.
Introduction The PRO8000 chassis serves as a multi-wavelength test system whenpopulated with DWDM laser modules (see page 560 for specifications). Inaddition to these DFB laser sources, we offer a series of Fabry-Perot laserdrivers (see page 649) and a series of optical switches (see pages 1035-1041).
The modular design of the PRO8000 chassis can accept up to eight WDMlaser sources per chassis. We support all 600 ITU wavelengths (25GHzspacing) across the S-, C-, and L-bands with output powers in the range of10-20mW.* Many of the laser modules are available directly from stock.
All PRO8 WDM laser modules utilize telecom-rated laser diodes housed inbutterfly packages; each DFB laser contains a temperature sensor and a Peltierelement for optimal long-term stability. Standard optical output is a PM fiberthat is terminated by an unaligned FC/APC connector. Other outputconnector options are available by special order.
Precise Wavelength Calibration and ControlUsing the front panel controls of the PRO8000, the wavelength of each laser sourcemodule can be tuned by ±.85nm (approximately ±100GHz) while retaining strict
control of the output power because of the comprehensive factorycalibration (wavelength dependence on both the temperature andthe drive current) of each laser module; the calibration data isstored in nonvolatile memory within each laser module. Thiscalibration data, coupled with our high-performance electronics,allows extremely precise control of the laser wavelength because it istuned across a number of 25GHz channels. See page 561 for fulldetails.
IEEE-488 Computer Control of Multiple PRO8000s The PRO8000 chassis is equipped with a fast IEEE-488.2 interfacesupported by the various LabVIEW™ and LabWindows™/CVI
drivers provided. The PRO8000 can source up to16A, which is sufficient to power eight of ourWDM laser modules. All PRO8 Series chassis arealso equipped with an RS-232C interface.Utilizing IEEE-488.2 compliant commands allowscomplete control of each individual laser withinthe software environment.
User-Friendly OperationThe PRO8000 Series offers user-friendly menusto configure and operate the various modules thatcan be driven (laser modules, optical detectors,optical switches, and a large variety of electricalmodules – see page 432). The PRO800, a 2-slotchassis, is offered for the research laboratory. Thiscompact version supports all the modulesavailable for the larger PRO8000 chassis. Withthe exception of the size differences and powersupply, both chassis utilize the same electricalinterface and operating system.
Since each plug-in module automaticallyidentifies itself to the processor in the chassis,configuring a system is as simple as inserting the desired modules and setting the controlparameters via the front panel. A brightly lit, 4x20 fluorescence display allows the user to scroll through and select any of the installedmodules. With the desired module selected, all of its control parameters are accessible from thefront panel.
Higher-level commands are available whenoperating the system via the IEEE-488.2interface. For example, there is a command totune the wavelength of a laser module, whichfacilitates the measurement of crosstalk inadjacent channels of a DWDM component.
Choose from Multiple Families of Laser Modules Details on the standard DWDM laser modules for the PRO8 platform, as well as solutions with customer-supplied lasers, are presentedon the following pages. Contact Thorlabs for details.
PRO8 Series Chassis SpecificationsPRO800 PRO8000 PRO8000-4
Slots 2 8 8
Maximum Output Current for All Cards 8A 16A 32A
Maximum Power Consumption 220VA 500VA 800VA
Display Alphanumeric Display With 4x20 Characters
Operation Menu-Driven
Setting Function Keys and Rotary Knob
Protection Features Key-Operated Power Switch
TTL Modulation Frequency Range DC to 10kHz (Synchronous for All Lasers in Chassis)
TTL Duty Cycle Selectable (Synchronous for All Lasers in Chassis)
TTL Modulation Input BNC
TTL Trigger Output BNC
IEEE-488.2 Interface 24-Pin IEEE Jack (Rear Panel)
RS-232C Interface 9-Pin D-Sub Plug (Rear Panel)
Chassis Ground 4mm Banana (Rear Panel)
Line Voltage 100V, 115V, and 230VAC
Line Frequency 50–60Hz
Operating Temperature 0 –40°C
Storage Temperature – 40°C - 70°C
Relative Humidity <80%
Dimensions Chassis Only (WxHxD) 232 x 147 x 396mm 449 x 147 x 396mm 449 x 177 x 456mm
Extensive Inventories Thorlabs’ DWDM sourcescover the ITU-T DWDMgrid containing 600wavelengths (25GHzchannels) spanning the S-,C-, and L- Bands. Many ofthese lasers ship directlyfrom stock; the S-band lasers, however, are onlyavailable upon request.
Thorlabs also offers the service of incorporatinguser-supplied lasers into our modules. Pleasecontact Thorlabs for details.
Our laser sources are supplied with PM fiber and a non-orientated FC/APC connector. For detailson customized options, please contact Thorlabs.
Complete ITU Coverage: We are committed to providing quick delivery of any of the 600 lasers (on a25GHz grid) that comprise the DWDM S-, C-, and L-bands.* When ordering, please refer to the tablespresented on pages 562 and 563, which are organized based on 100GHz channel spacings. Pricing andordering codes can also be found there. Our order codes are a combination of the band designator (S, C, orL), the 100GHz channel number (01 through 50), and an additional character (A, B, C, or D) thatindicates the frequency offset from the base channel.
*Subject to Laser Diode Availability
Introduction – DWDM Laser ModulesThe PRO8 DWDM laser modules offer precise tunability as well as long-termwavelength and power stability. Provided with adjustable coherence control, theselaser modules are ideally suited for all DWDM applications such as test systems forfiber optic DWDM components, EDFA manufacturing, and multi-laser opticalsources for DWDM transmission experiments.
Stability, Accuracy, and DependabilityThis DWDM laser platform is the ideal choice for demanding DWDM test andmeasurement applications with laser linewidths of less than 10MHz, centerwavelength stability of better than 0.002nm per 24 hours, and wavelength accuracyof better than ±0.025nm.We use only telecom-rated, butterfly packaged DFB lasers with integrated TECelements, optical isolators, and low back-reflection fiber pigtails. When combinedwith our sophisticated drive circuits, the result is an extremely stable, low-noise lasersource that exhibits optical power stability better than 0.005dB per 15 minutes anda relative intensity noise RIN figure of -145dB/Hz. All Thorlabs’ instruments are backed by an extensive two-year warranty on materialsand workmanship.
Features Center Wavelengths on 25GHz ITU-T Grid Wavelengths in S-, C-, & L- Bands* Wavelength Stability: <0.002nm (24 Hours) Extremely Stable Output Power: <0.01dB (24 Hours) Precise Wavelength Tuning Over ±0.85nm Direct Display of Wavelength During Tuning Variable Coherence Control, Linewidths up to 1GHz Synchronous Modulation of All Laser Sources via Common External
TTL Signal Instrument Drivers for LabVIEW™ & LabWindows™/CVI Included FC/APC Connector*Subject to Laser Diode Availability
PRO8000 Optical Switch Modules:The OSW8000 optical switch modulesfacilitate distribution of test signals incomplex test setups for cost-efficient use oflaser sources. The modularity of 1x2, 1x4, 1x8, and 2x2 switches allows flexiblerouting paths.
See next page for pricing and order codes for laser modules.
The magnitude of these effects can be significantly reduced by increasing thelinewidths of the source. Therefore, all the DWDM-series laser sources provide anadjustable coherence length control. Here a small signal modulation on the lasercurrent is used to broaden the DFB laser linewidth from a few MHz up to more than1GHz. The PRO8 provides continuous adjustment of the linewidth over this entirerange. An internal broadband noise source or an internal, freely running, sinewave/square wave generator is used to modulate the laser current. The modulationfrequency range of the function generator is 20Hz to 50kHz with up to 100%modulation depths. Using these features, an ideal non-discrete Gaussian-shapeddistribution or a discrete spectral distribution is generated.
External Digital Modulation, DC to 10kHz
All laser modules within a chassis can be modulated synchronously by an externalTTL signal. The modulation bandwidth ranges from DC to 10kHz. Themodulation signal input is on the back panel of the chassis and operatessimultaneously on all laser modules of the chassis.
RF Modulation, Up to 2.5Gbps
For RF data transmission, the laser modules are available equipped with an RFmodulation interface; this feature allows the direct modulation of the laser. Themodulation input is via an SMA connector located directly on the front panelof the DWDM laser module, which supports data rates up to 2.5Gbps.See pages 562-563 for ordering information.
External Analog LF Modulation, DC to 50kHz (Optional)
For applications where a precise LF modulation up to 50kHz is required, theDWDM modules are available with an LF modulation option. With this option,the output power can be modulated via an optional SMA input. The laser remainsfully protected due to a precise limit circuit located inside the module.
Precision Wavelength Tuning
The wavelength is displayed with a resolution of 0.001nm on the PRO8000 frontpanel or can be read through the IEEE-488 interface and has a resolution of0.001nm. By precisely controlling the temperature of the laser chip, the emittedwavelength can be tuned over a range of ±0.85nm (approximately ±100GHz). Thisrange allows the central wavelength of the source to be shifted from onetransmission channel to either of the adjacent channels for dense WDM systemswith 100GHz channel spacing or tuning over up to 8 channels for systems with25GHz channel spacing. This feature is useful for simulating crosstalk betweenchannels. It can also be used to measure the profile of narrow band DWDM filters.
Manual polarization controllers can be supplied as accessories for laser modules.They can be used to adapt the state of polarization in the fiber to polarization-dependant external modulators. (See page 983).
Coherence Control, Internal ModulationFor high-precision power measurements, the narrow linewidth of aDFB laser can lead to interference effects caused by reflections fromthe multiple surfaces that are present in most optical systems. Thesemultiple reflections, while extremely small, can accumulate due tothe long coherence length of the laser light. Brillouin scattering isanother effect that can lead to significant errors when makingoptical power measurements in fiber-based systems.
–145dB/Hz (Typ.) Optical Isolation: >35dBCoherence Control (Standard Feature, All Models) Linewidth: Up to 1GHz (Adjustable) Shape: Noise, Sine, & Square
(Triangle Upon Request) Frequency: 0.02 to up to 50kHz Modulation Depth: 0.1 to 100%Modulation Synchronous TTL: DC-10kHz
(All Lasers via BNC Input on theMainframe)
Analog LF Modulation Input:DC-50kHz (Option Via SMA Input)
General Data Optical Output: FC/APC Connector Fiber: PMF Operating Temperature: 0 to +35˚C Storing Temperature: -40 to +60˚C Warm-Up Time: 15min
NM (No DirectModulation)LF (External, AnalogModulation DC-50kHz)
10 (10mW)20 (20mW)
L (L-BAND)
Example (WDM8-C-09C-20-NM): First go to the C-Band table,then down to channel 09, and over to column C. Thewavelength is 1562.84nm, and the nominal optical power is20mW (cw, no modulation).
Cha
nnel
ITU GRID COLUMN(A, B, C, OR D)
DWDM Laser Sources PRO8 Series (Ordering Guide)
Part #
DWDM820 -
Buy 8 DWDM
Models, Get
the PRO8000
Chassis
FREE!
Lead times depend on the wavelengths of our laser sources. Pleasecontact our technical support team for more information.
Complete ITU Coverage: We are committed to providing quick delivery of any of the 600 lasers (on a25GHz grid) that comprise the DWDM S-, C-, and L-bands*. When ordering, please refer to the tablespresented on page 565, which are organized based on 100GHz channel spacings. Pricing and orderingcodes can also be found there. Our order codes are a combination of the band designator (S, C, or L), the100GHz channel number (01 through 50), and an additional character (A, B, C, or D) that indicates thefrequency offset from the base channel.
*Subject to Laser Diode Availability
DWDM Laser Sources for TXP5000 – LS5000 Series
Introduction – LS5000 DWDM Laser ModulesThe LS5000 DWDM laser modules for the TXP5000 Series systems offerprecise tunability as well as long-term wavelength and power stability.Adjustable coherence control makes them ideal for both active and passiveDWDM component testing as well as multi-wavelength transmissionexperiments.
The WDM laser modules are ideally suited for all DWDM applications,ranging from test systems for fiber optic DWDM components and EDFAproduction to multi-laser optical sources for DWDM transmissionexperiments.
Stability, Accuracy, and DependabilityThis DWDM laser platform is the ideal choice for demanding DWDMtest and measurement applications with laser linewidths of less than10MHz, center wavelength stability of better than 0.005nm per 24hours, and wavelength accuracy of better than ±0.025nm.We use only telecom-rated, butterfly-packaged DFB lasers withintegrated TEC elements, optical isolators, and low back-reflection fiberpigtails. When combined with our sophisticated drive circuits, the resultis an extremely stable, low-noise laser source that exhibits optical powerstability that is better than 0.005dB per 60 minutes and a relativeintensity noise RIN figure of 145dB/Hz is typical. All Thorlabs’instruments are backed by an extensive two-year warranty on materialsand workmanship.
Extensive Inventories The ITU-T DWDM grid now contains 600 wavelengths (25GHzchannels) spanning the S-, C-, and L-Bands. Thorlabs stocks acomprehensive inventory of C- and L-band lasers with powers of 10mWand 20mW. Many of these lasers ship directly from stock. Due to alimited demand, S-band lasers are available upon request.
Thorlabs has earned a reputationfor providing exceptional service.We are fully committed toproviding the same level ofservice on this extensive productline.
For manufacturers of laserdiodes, Thorlabs also offers theservice of incorporating user-supplied lasers into ourmodules. Please contacttechnical support for details.
Features Center Wavelengths on 25GHz ITU-T Grid Wavelength Stability <0.005nm (24 Hours) Output Power Stability <0.01dB (24 Hours) Wavelengths in C-, S-, & L- Bands* Precise Wavelength Tuning Over ±0.85nm Direct Display of Wavelength During Tuning Precise Power Tuning Over up to 10dB Variable Coherence Control, Linewidths up to
1GHz Instrument Drivers for LabVIEW™ &
LabWindows™/CVI Included
*Subject to Laser Diode Availability
TXP5000 Series Chassis SpecificationsTXP5016 TXP5004 TXP5001AD*
Maximum Power Consumption 400VA 150VA 75VANumber of Slots 16 Slots 4 Slots 1 SlotOperation GUI on Remote PCRemote Interface Ethernet 10Base-T USB 2.0 USB 2.0Remote Drivers LabVIEW™, LabWindows/CVI™, and C++Chassis Ground 4mm Banana 4.8mm Fast-OnLine Voltage 100-240V AC ±10%Line Frequency 50-60Hz ± 5%Operating Temperature 0 to +40°CStorage Temperature –40 to +70°CDimensions 449 x 148 x 435mm 168 x 148 x 315mm 124 x 23 x 112mmWeight (w/o Modules) 7kg (15.41lb) 3kg (6.61lb) 0.2kg (0.44lb)
*Please see order information at the bottom of the next page.
4_WDMLaser 556-565.qxd.P 8/29/07 11:02 AM Page 564
For informationabout the ITUgrid and availablewavelengths, seepages 564-565.
Interference EffectsFor high-precision power measurements, the narrow linewidth of a DFB lasercan lead to interference effects caused by reflections from the multiplesurfaces that are present in most optical systems. These multiple reflections,while extremely small, can accumulate due to the long coherence length.Brillouin scattering is another effect that can lead to significant errors whenmaking optical power measurements in fiber-based systems.The magnitude of these effects can be significantly reduced by increasing thelinewidths of the source. Therefore, all the DWDM series laser sourcesprovide a control to adjust the coherence length; a small signal modulationon the laser current is used to broaden the DFB laser linewidth from a fewMHz up to more than 1GHz. The LS5000 modules provide continuousadjustment of the linewidth over this entire range. An internal broadbandnoise source or an internal freely running sine wave/square wave generator isused to modulate the laser current. The modulation frequency range of thefunction generator is 20Hz to 50kHz with up to 100% modulation depths.Using these features, an ideal non-discrete, Gaussian-shaped or a discretespectral distribution is generated.
External Analog LF Modulation DC to 50kHz (Optional)For applications where a precise LF modulation up to50kHz is required,the DWDM modules are available with an LF modulation option. Withthis option, the output power can be modulated via an optional SMAinput. The laser remains fully protected due to a precise limit circuitlocated inside the module.
Precision Wavelength TuningThe wavelength is displayed with a resolution of 0.001nm. By preciselycontrolling the temperature of the laser chip, the emitted wavelength canbe tuned over a range of ±0.85nm (approximately ±100GHz). This rangeallows the central wavelength of the source to be shifted from onetransmission channel to the adjacent channels in dense WDM systemswith 100GHz channel spacing, and a tuning over up to 8 channels insystems with 25GHz channel spacing. This feature is useful for simulatingcrosstalk between channels and can also be used to measure the profile ofnarrow band DWDM filters.
Coherence ControlAll the DWDM series laser modules provide anadjustable coherence length control. For high-precision power measurement, the narrowlinewidth of a DFB laser can lead to coherentinterference effects due to reflections from themultiple surfaces that are present in most opticalsystems.
Coherence Control (Standard Feature,All Models) Linewidth: Up to 1GHz (Adjustable) Shape: Sine, Square, & Triangle Frequency: 0.02 to up to 20kHz Modulation Depth: 0.1 to 100%
Modulation Analog LF Modulation Input:
DC-50kHz (Option via SMA Input)
General Data Optical Output: FC/APC Connector Fiber: PMF (Aligned Connector Available upon
Request) Operating temperature: 0 to +35˚C Non
Condensing Storing temperature: -40 to +60˚C Warm-Up Time: 15min for Rated Accuracy Laser Module Width: 1 SlotAll Data Valid at 23±5ºC and 45±15% Relative Humidity
TXP5016 CHASSIS WITH LS5000 MODULES
Example (LS5-C-09B-10nm): C-Band Source, Channel 9 in the 50GHz ITU “B” Grid(1522.95nm), 10mW.
CHANNELCODE (01...50)
Ordering Information
LS5-X-XXX-XX-NM
10 (10mW)20 (20mW)
S/C/L BANDITU GRID COLUMN(A, B, C, OR D)
ITEM $ £ € RMB DESCRIPTION
LS5-X-XXX-10-NM $ 2,200.00 £ 1,386.00 € 2.046,00 ¥ 21,010.00 WDM Laser Source 10mW, No Direct ModulationLS5-X-XXX-20-NM $ 2,500.00 £ 1,575.00 € 2.325,00 ¥ 23,875.00 WDM Laser Source 20mW, No Direct ModulationTXP5004 $ 1,198.80 £ 755.20 € 1.114,90 ¥ 11,448.50 TXP Test and Measurement, 4 Slot With USB ControlTXP5016 $ 3,480.00 £ 2,192.40 € 3.236,40 ¥ 33,234.00 TXP Test and Measurement, 16 Slot With Ethernet Control
DWDM Laser Sources for TXP5000 – LS5000 Series (cont.)
4_WDMLaser 556-565.qxd.P 8/29/07 11:02 AM Page 565
S1FC Series Features Single Mode FC/PC Fiber Interface Low Noise, Highly Stable Output 5 Standard Models From 635nm to 1550nm Custom Wavelengths Available (Call for Details) Angle-Cleaved Fiber Minimizes Back Reflections at the Laser
S3FC Series Features Narrow Spectral Linewidths: <0.6nm
Thermo-Electric Temperature Stabilization
Active Power Stabilization
40dB Optical Isolation
Adjustable Temperature Set Point
Adjustable Power
1 Nominal wavelength, actual wavelength may vary by ±15nm2 Minimum power available at the output connector, the actual power may be greater
1 Nominal wavelength, actual wavelength may vary by ±15nm2 Minimum power available at the output connector, the actual power may be greater
The S1FC Series Fiber Coupled Laser Sources utilize an internally pigtailedlaser diode that is connected to the front panel FC feedthrough via a singlemode fiber. By providing a fiber-to-fiber connection at the output, thesedevices typically deliver more useful optical power than systems that use areceptacle with embedded optics. All of our fiber pigtailed lasers utilize anangled fiber ferrule at the internal laser/fiber launch point to minimizereflections back into the laser diode, thereby increasing the overall stability.
The S3FC Series Fiber Coupled Laser Sources feature a narrow linewidth DFB laserdiode and a 40dB optical isolator to eliminate back reflections and frequency jitter.
Additionally, the S3FC Series incorporates an integrated temperature control systemfor increased wavelength and power stability. The diode temperature can be adjustedusing the front panel potentiometer, allowing limited wavelength tuning.
The TLS001 T-Cube Laser Source is a fully functional, highlycompact laser source. The device incorporates driver electronicsand a pigtailed Fabry-Perot laser diode, which increases the totalavailable output power compared to an air-to-fiber version, inboth 635nm and 1550nm variants. It can be controlled by amanual and USB interface. The output laser power is monitoredcontinuously and a feedback circuit adjusts the laser power toachieve a constant output power.
The TLS001 may be mounted directly onto an optical table andoperated as a stand-alone unit requiring Thorlabs' 5V, 1.6Acompact power supply (TPS101). Alternately, the laser sourcecould be connected using our T-Cube Controller Hub(TCH002), which provides power and USB connectivity for upto 6 T-Cube devices. Included with the unit is very user-friendlyapt™ software which allows quick setup and control of theTLS001 and is the same software, used to control all of ourother T-Cube products. Advanced custom control sequences arealso possible using the extensive ActiveX® programmingenvironment.
TLS001
Features Compact Footprint Single Mode Fiber Interface With FC/PC Plug 635nm or 1550nm Wavelengths Available USB Plug-and-Play Manual- or PC-Controlled Operation via USB Safety Enable Key Switch Laser Safety Interlock Jack Software Control Suite Included Extensive ActiveX® Programming Interfaces Software Compatible With Other apt™ Controllers
Wavelength: 35nm or 1550nm Maximum Full Output Power:
625nm - 2.5mW, 1550nm - 1.5mW Stability: ±0.1dB Display Accuracy: ±10% Set Point Resolution: 0.01mW Operating Temperature: 15°C-35°C Storage Temperature: 0°C-50°C Modulation Input: 0-10V = 0 to Full Power, DC or
Sine Wave Input Only Modulation Bandwidth: 10kHz 33% Depth of Mod Power Input: 5V, 1.6A General:
• Housing Dimensions (W x D x H): 120 x 60 x47mm (4.8" x 2.4" x 1.8")
• Weight: 250g (8.8oz)
ITEM# $ £ € RMB DESCRIPTION
TLS001-635 $ 1,050.00 £ 661.50 € 976,50 ¥ 10,027.50 T-Cube™ Laser Source, 635nm Wavelength, Class 3RTLS001-1550 $ 1,130.00 £ 711.90 € 1.050,90 ¥ 10,791.50 T-Cube™ Laser Source, 1550nm Wavelength, Class 1MTPS101 $ 30.00 £ 18.90 € 27,90 ¥ 286.50 5V Power Supply Unit for a Single T-Cube, 1.6ATCH002 $ 765.00 £ 482.00 € 711,50 ¥ 7,305.80 T-Cube™ Controller Hub and Power Supply Unit
The MCLS MultiChannel Laser Source consists of four single mode, fiber coupled laser diodes in one convenient enclosure. Each channeloperates in a constant power control loop to maintain consistent output power against changes in operating temperature. The output of eachlaser is accessible through FC/PC terminations on the front panel.
The channels can be individually enabled using dedicatedOn-Off switches and can be individually controlled byapplying an analog voltage of 0-5V to the inputs on the rearpanel. They can also be simultaneously enabled andcontrolled using a Master Enable feature and a front-panelmaster adjuster, respectively.
User-safety features include a key lock power switch, remoteinterlock connector, and output beam stops. Laser diodeprotection features include shorting relays; active currentlimits; and soft-start, laser-enabled circuitry.
MultiChannel Fiber Coupled Laser Sources
MCLS Series SpecificationsAnalog Input 0-5V Provides Zero to Full PowerPerformance SpecificationsParameter Minimum Typical Maximum UnitWavelengthMCLS635 625 635 640 nmMCLS1550 1530 1550 1570 nmPower per Channel*MCLS635 2.5 mWMCLS1550 1.5 mWStability: 15min ±0.05 dB
Long-term ±0.1 dBModulation Bandwidth 30kHzOperating Temp. 10 40 °C*Power available at the output connector, the actual power may be greater
Available in Two Models: 635nm &1550nm (Other Wavelengths Available)
Analog Modulation to 30kHz
Master & Individual Laser Enable
Safety Features Include Output Caps,a Keylock Master Power Control,Remote Interlock Capability, & a Master Enable Control
Analog Modulation ModeBNC analog modulation connections are available for each channel on the rear panel. Applying a 0 to 5V signal allows remoteadjustment of each channel. The signal input may be modulated as high as 30kHz.
Master or Individual Channel EnableAll channels can be enabled simultaneously by using the master enable feature or individually by using dedicated enable controls foreach channel. Front panel LEDs indicate active channels.
MCLS155019” Rack Mount Package
5_BenchtopLaser566-569.qxd.P 7/6/07 10:47 AM Page 568
LDM Series Laser Diode Modules – Blue or RedThe LDM Series of Laser Diode Modules are self-contained laser diode modules,emitting at either 405nm or 635nm. These user-friendly devices providecollimated output beams and include provisions for attaching our SM1 seriesoptics packages to allow focusing of the collimated beam.
Containing both a constant current laser diode drive system and a TEC-stabilizedtemperature controller, each module offers an extremely stable CW output. Theoutput power can be controlled via a user-accessible adjustment pot, a beamshutter, or an enable switch. The enable switch is separated from the power switch,allowing the TEC controller to maintain temperature while the laser is disabled.
The LDM Series has all of the required safety features, including a keylock powerswitch, remote interlock connection, beam shutter, and laser ON indicator.
Operating from the included 9VDC power supply, each module can be mountedto any optical table using one of our KM200V, C1502, C1503, or VC3 V-groovemounts.
Features 405nm or 635nm Temperature Stabilized Adjustable Output
Power SM1 Compatible
IEC60825-1/CDRHCompliant
Collimated OutputBeam
Beam Shutter
Specifications for LDM635Parameter Typical DataWavelength 635nmOptical Power 4.5mW (maximum)Beam Diameter 3.0 x 5.0mm1
Stability:Short term (30min) 0.01dBLong term drift (24 hours) 0.1dBTEC Temperature 25°C (fixed)Operating Temperature 10-40°CStorage Temperature 5-50°CInput Voltage 9VDC2
Input Current 1A1) Measured 3m from module. Beam shape is elliptical2) An AC to DC power supply is provided with each unit.
Input: 100 to 240VAC 45VA, Output: 9VDC @1.3A
Specifications for LDM405Parameter Typical DataWavelength 405nmOptical Power 4.5mW (maximum)Beam Diameter 3.0 x 5.0mm1
Stability:Short term (30min) 0.01dBLong term drift (24 hours) 0.1dBTEC Temperature 25°C (fixed)Operating Temperature 10-40°CStorage Temperature 5-50°CInput Voltage 9VDC2
Input Current 1A1) Measured 3m from module. Beam shape is elliptical.2) An AC to DC power supply is provided with each unit.
Input: 100 to 240VAC, Output: 9VDC @1.3A
LDM635 Shownin a KM200V
KinematicMount (SoldSeparately)
See Page 147
POWER SUPPLY INCLUDED
LDM635
LDM405
5_BenchtopLaser566-569.qxd.P 7/17/07 9:00 AM Page 569
Thorlabs offers a variety of Helium-Neon Lasers with powers from 0.5mW to 35mW as stockitems. Wavelengths of 543, 594, 604, 612, 633, 1150, 1520, and 3390nm are available invarious package styles and with two different output polarizations. The most commonly usedHeNe lasers are at 633nm and have become common components in a variety of applications inboth research and industry. Thorlabs also offers a wavelength selectable HeNe laser that can betuned to 633, 612, 604, 594, or 543nm by adjusting a screw on the back of the unit. This isachieved by incorporating a low loss plasma tube with one sealed Brewster window and anexternal, adjustable Littrow prism all built within the laser’s case.
All Thorlabs HeNe lasers are CE compliant and include separate or integrated power supplies.
Post and Mount Not Included
Post and Mount Not Included
Tunable Lasers
Femtosecond Laser
WDM Laser Sources
BenchtopLaser Sources
HeNe Lasers
ASE Sources
Terahertz
Electro-OpticModulators
6_HeNe Lasers 570-574.qxd.P 7/6/07 10:48 AM Page 570
Features Ideal for Alignment Applications Available in Polarized and Random Polarization Versions Built-In Switchable Beam Block Built-In Switchable Power Supply & CE
Compliant Improved Start-Up Circuit Four #4-40 Tapped Mounting Holes for Easy
Attachment of Accessories
Self-Contained Red (632.8nm) Helium-Neon Lasers
ITEM # λλ $ £ € RMB POWER DESCRIPTION POLARIZATION
HRP005S 632.8nm $ 720.00 £ 453.60 € 669,60 ¥ 6,876.00 0.5mW HeNe Laser System, 633nm, 0.5mW, Polarized Linear >500:1HRR005S 632.8nm $ 650.00 £ 409.50 € 604,50 ¥ 6,207.50 0.5mW HeNe Laser System, 633nm, 0.5mW, Random RandomHRR008S 632.8nm $ 720.00 £ 453.60 € 669,60 ¥ 6,876.00 0.8mW HeNe Laser System, 633nm, 0.8mW, Random Random
Low-Power, Compact, Red (632.8nm) Helium-Neon Lasers0.5mW to 2.0mW
SWITCHABLE(110/230VAC) POWERSUPPLY INCLUDED
These compact, self-contained Helium-Neon lasers integrate a red (632.8nm) HeNelaser tube with a built-in switchable power supply. They are the ideal choice forapplications, such as alignments, that require a small, low-power laser. The ruggedenclosure includes four #4-40 mounting holes for easy attachment of accessories.
These cylindrical, low-power, red (632.8nm)Helium-Neon lasers range in power from 0.5mWto 2.0mW. The classic tube design makes it easyto mount in nearly any optical system. The HeNelaser comes with a built-in Interlock for safety.Thorlabs offers the 632.8nm laser with eitherlinear (>500:1) or random polarization, and beamdivergences ranging from 1.00mrad – 1.41mrad.
SWITCHABLE(110/230VAC) POWERSUPPLY INCLUDED
Post and Mount Not Included
Low Power & Compact HeNeLaser Features Cylindrical Tube Mounts Easily Into
Optical Systems Four #4-40 Tapped Mounting Holes for
Easy Attachment of Accessories Keyed Power Supply With Built-In
Interlock Separate Power Supply Included CE Compliant
Post and Mount Not Included
1/e2 BEAM BEAM LONGITUDINALITEM # POWER POLARIZATION L $ £ € RMB DIAMETER DIVERGENCE MODE SPACING
These high-power, red (632.8nm), helium-neon lasers exhibit outstanding stabilityand performance with power outputs up to 17mW. Thisclassic tube design features four #4-40 holeslocated on the front for easy mounting ofaccessories. Visit our website for the latestaccessories at www.thorlabs.com.
Laser & ASE Systems
572 www.thorlabs.com
Specifications Operating StorageOperating Temperature (°C): -20 to 70 -40 to 80Operating Altitude (m): 0 to 3,000 0 to 6,000Humidity: ≤80% ≤95%Shock: 15g for 11msStart-Up Voltage: <10kVDCBeam Drift(after 20min Warm-Up): <0.2mradLong-Term Beam Drift: <0.05mradNoise (30Hz to 10MHz): <1% RMS
1/e2 BEAM BEAM LONGITUDINALITEM # POWER POLARIZATION L $ £ € RMB DIAMETER DIVERGENCE MODE SPACING
High-Power, Red, (632.8nm) Helium-Neon Lasers5mW to 17mW
The HRP350 and HRP350-EC offer completely modern design strategies tolarge-frame Helium-Neon lasers. Based on a novel extension of the hard sealtechnology used in the cylinder HeNe lasers, these lasers bring the samereliable, long-life operation to high-power applications as their lower power
cousins do. The innovative construction of this system includes a rigidouter housing to maintain mirror alignment. This housing leads to
a much lighter laser that is less susceptible to misalignmentduring shipment and installation than older designs.
Post Not Included
*110VAC External Power Supply Included **230VAC External Power Supply Included
Features High Power: 35mW Complete System With Power Supply Novel Design for Long Life and Extreme
Stability External Power Supply Provided:
• HRP350 for 110VAC Nominal Input• HRP350-EC for 230VAC Nominal Input
ITEM # λ(nm) $ £ € RMB POWER DESCRIPTION POLARIZATION
HTPS 543-633 $ 5,449.00 £ 3,432.90 € 5.067,60 ¥ 52,038.00 0.3-4.0mW Wavelength Selectable, Five-Color HeNe Laser, 110VAC Linear >500:1
HTPS-EC 543-633 $ 5,449.00 £ 3,432.90 € 5.067,60 ¥ 52,038.00 0.3-4.0mW Wavelength Selectable, Five-Color HeNe Laser, 230VAC Linear >500:1
Specifications Operating StorageTemperature Range (°C): -20 to 70 -40 to 80Maximum Altitude (m): 0 to 3,000 0 to 6,000Humidity: ≤80% ≤95%Shock: 15g for 11msStartup Voltage: <10kVDCBeam Drift(after 20min warm-up): <0.2mradLong Term Beam Drift: <0.05mradNoise (30Hz to 10MHz): <1% RMS
Wavelength Selectable Helium-Neon Laser
1/e2 BEAM BEAMITEM # POWER WAVELENGTH L $ £ € RMB DIAMETER DIVERGENCE POLARIZATION
Output at 633, 612, 604, 594, or 543nm Excellent Power, Beam Pointing, and Thermal Stability
Thorlabs offers a line of selectable wavelength, five-color HeNe laser systems that can switchbetween all of the main visible neon laser transitions (543nm, 594nm, 604nm, 612nm, and633nm), making the systems versatile and economical research tools.
The HTPS and HTPS-EC HeNe Lasers incorporate a low-loss plasma tube with onesealed Brewster Window and an external Littrow Prism. By adjusting the angle of theLittrow Prism with micrometer adjustments on the rear panel, the user can selectamong the visible neon laser transitions. A power supply is housed internally in thelaser, making the unit completely self-contained. Choose the HTPS for 110Voperation and the HTPS-EC for 230V operation.
Specifications Operating StorageTemperature Range (°C): -20 to 70 -40 to 80Maximum Altitude (m): 0 to 3,000 0 to 6,000Humidity: ≤80% ≤95%Shock: 15g for 11msStartup Voltage: <10kVDCBeam Drift(after 20min Warm-Up): <0.2mradLong-Term Beam Drift: <0.05mradNoise (30Hz to 10MHz): <1% RMS
WAVELENGTH MODE MINIMUM BEAM DIAMETER DIVERGENCE POLARIZATION LONGITUDINAL MODE(nm) STRUCTURE POWER (mW) (mm) (mrad) RATIO SPACING (MHz)633 TEM00>99% 4.0 0.77 1.05 Linear >500:1 428612 TEM00>99% 2.5 0.76 1.03 Linear >500:1 428604 TEM00>99% 0.5 0.75 1.02 Linear >500:1 428594 TEM00>99% 0.6 0.74 1.02 Linear >500:1 428543 TEM00>99% 0.3 0.71 0.97 Linear >500:1 428
SWITCHABLE(110/230VAC) POWERSUPPLY INCLUDED
Thorlabs offers a selection of HeNe lasers in discrete wavelengths of 543nm,594nm, 1523nm, and 3392nm. These HeNe Lasers have power levels rangingfrom 0.5-2.0mW. The HGP005, HYP020, H152P1, and H339P2 are polarizedmodels whereas the HGR005 and HGR020 exhibit random polarization.
Features Output at 543, 594, 1523, and 3392nm Higher Output Powers Longer Lifetimes Ideal for Alignment Applications Precision Metrology
PM2 PM2/M $ 14.70 £ 9.30 € 13,70 ¥ 140.40 Extra Clamping Arm
*One PM2 included with each unit.
Pitch and Yaw Adjustment for Easy Beam Pointing Kinematic Design Provides Stability Ø2" (50mm) Maximum Clamping Diameter Ø0.56" (14mm) Minimum Clamping Diameter Compatible With Standard Ø1.5" Mounting Posts
PM2
C1502
The C1503 is a kinematic cylindrical lasermount that provides two axes of precisionangular adjustment. The angular adjustmentsprovide control of the beam point, while thevertical height can be set by moving the unitalong the support post. A series of hardenedchromium steel balls and ball seats form a truekinematic mechanism that works with gravityto provide long-term stability.
The C1502 will accept cylindrical objects ranging from Ø0.56" (14mm) toØ2" (50mm). Each unit comes with one clamping arm; extra arms can bepurchased separately. See the box below.
S Band 10dBm Power Excellent Stability (0.008dBm Over
8 Hours) Standard SMF-28e Output Fiber
Thorlabs is enhancing test and measurement capabilities within the S Band withthis short wavelength ASE610 light source. Utilizing all silica, Erbium-dopedfiber, the light source achieves >-20dB gain from 1485-1510nm.
The ASE610 is ideal for component testing, optical power meter calibration labs,and nonlinear optical effect characterization. Its exceptional stable output powerand gain will simplify many test routines.
The ASE610 S Band light Source provides performance previously unavailable inthe S Band. Bringing new technology to the laboratory, the ASE610 offers stable,broadband light between 1475 and 1525nm. This all silica, Er-based, singlemode light source meets the testing needs for both telecom and datacomapplications. The ASE610, in an easy-to-operate unit, is well suited for either thebenchtop or an equipment rack.
ITEM# $ £ € RMB DESCRIPTION
ASE610 $ 10,600.00 £ 6,678.00 € 9.858,00 ¥ 101,230.00 1450nm to 1530nm S-Band ASE White Light Test Source
ASE610
S Band White Light Test Source
Specifications Total Output Power: 10dBm Typical Spectral Power Density (Typical):
Features Additional L Band Power High-Power (30mW) Version of Our
Most Popular Model Standard SMF-28e Output Fiber
C & L Band High-Power White Light Source
Time (Hours)
Figure B:The ASE730 offers low noise, broadband output and exceptional stability as
illustrated. Our optical power stability specification of ±0.005dB (maximum) offersan exceptional broadband test instrument and is touted as the best in the industry.
ITEM# $ £ € RMB DESCRIPTION
ASE730 $ 10,800.00 £ 6,804.00 € 10.044,00 ¥ 103,140.00 1530-1625nm, 30mW, ASE Test Source
ASE730
Specifications Total Output Power: >+15dBm (30mW) Spectral Power Density (typical):
> -18dBm/nm@1530nm, > -11dBm/nm@1540-1600nm, >-18dBm/nm@1610nm Output Power Stability: ±0.001dB (15min. After 1 Hour Warmup), ±0.005dB Maximum Wavelength Range: 1530nm-1625nm Output Connector: FC/PC Output Fiber: SMF-28e Size (mm): 88(H) x 230(W) x 352(D), 19" Rack-Mount Compatible Operation Temperature: 0˚C to 40˚C Storage Temperature: -10˚C to 45˚C Warranty: 2 years
Figure AThe spectral stability of the ASE730 is shownbelow. Trace C is the difference between twoscans (traces A & B) taken 15 minutes apart.
The ASE730 White Light Test Source delivers more than +15dBm of output power across the C & L Band wavelengths (1530nm to1625nm). This ASE source satisfies the demand for higher power, longer wavelength, test equipment in the L Band market, while alsosupporting existing C Band test instrumentation. The ASE730 is the lowest noise, high power C & L Band test source available today – seeFigure A for test results.
The ASE730 test source is designed to perform well beyond the industry standard. Key features of all of our ASE modules include lowintensity noise, broadband output, and exceptional wavelength stability – see Figure B. This ASE source takes advantage of Erbium-dopedfluoride fiber, pumped with a single 1480nm laser diode, to produce 30mW (15dBm) of broadband “white light.” This rare-earth fiberdesign allows for a higher degree of power and wavelength stability than conventional silica fibers with multiple pumping lasers. Theoutput fiber is a standard SMF-28 silica fiber.
Research interest in the terahertz (THz) region of theelectromagnetic spectra has been substantially increasing. Thisregion is defined as the spectral region between the infrared andmicrowave spectral bands and ranges from 100µm to 1000µm(300GHz to 3THz). In this region, the photon energies rangefrom 1.2 to 12.4eV and the equivalent black body temperatureranges from 14K to 140K, which is below the earth’s ambientbackground.
The Ultrafast Terahertz Research Group at Oklahoma StateUniversity (OSU) in Stillwater has put together a THz TimeDomain Spectroscopy (THz-TDS) system based on Thorlabs’optomechanical components, as shown in Figure 1. Their systemincludes two FRU modules; one houses a transmitter and the other
houses a receiver. A femtosecond laser is used toilluminate the THz transmitter, biased coplanartransmission lines fabricated on high-resistivityGaAs that has geometry similar to that shown inFigure 3. The laser is focused on the edge of thepositively biased line and generates a very largenumber of photo-induced charge carriers in thehigh electric field region, creating synchronousbursts of THz radiation. Their receiver FRUincludes a receiver chip that has antennaestructures fabricated on an ion-implanted silicon-on-sapphire (SOS) wafer. The antennae structureshave geometries similar to that shown in Figure 2.
The pulsed THz radiation isfocused between the gap of anantenna and induces atransient bias voltage.The portion of thefemtosecond laser beamthat is directed into thereceiver is also focused ontothe antenna, inducing atransient photocurrentthat synchronously gatesthe receiver. One canconsider this detection process asub-picosecond boxcar integrator.
With this system, OSU’s Ultrafast Terahertz Research Group hasscanned out past 5THz. Their system generates THz radiationwith ~10nW average power with a signal-to-noise ratio of10,000:1. The generated and detected THz radiation is coherentand the resulting receiver sensitivity is ~1000 times more sensitivethan an incoherent liquid helium cooled bolometer. The receivermodule of the THz-TDS system is shown pictured above. Thetransmitter module uses the same optomechanical components asthe receiver module. Thorlabs stocks this kit (part number FRU),which includes all the optomechanical parts needed to mount atransmitter or receiver module to a silica lens.
Terahertz Kit THz Transmitter/Receiver
Mount Module UsingThorlabs CatalogComponents
Free-Space Coupled Fiber Coupling by Request Highly Stable
Applications THz-TDS: Terahertz Time
Domain Spectroscopy THz-DTDS: Terahertz
Differential Time DomainSpectroscopy
Interferometry
Terahertz Transmitter/Receiver Mounting Module
Transmitter/ReceiverNot Included
Please visitwww.thorlabs.com/thz
for the latest THz-related product offeringand more information
on the THz TimeDomain Spectroscopysystem shown at theright, including a full
High-resistivity silicon lenses transmit more than 50 percent of terahertz radiation in the50µm–1000µm spectral region when the lens thickness is less than 0.5". As can be seen from the plotbelow, HRFZ-Si has superior transmission properties due to its high resistance and lack of absorptionlines in this spectral region.
Each Ø50.8mm lens has a meniscus shape, which performs nearly as well as a best form lens.
Features High Performance in a Compact Package Broadband DC Coupled and High Q Resonant
Models for Low RF Drive Standard Broadband AR and Custom Coatings Ø2mm Clear Aperture SMA Female Modulation Input Connector MgO-Doped Versions for High Power DC to 100MHz Custom OEM Versions Available
Electro-Optic Modulators
Thorlabs’ free-space electro-optic (EO) amplitude and phase lithiumniobate modulators combine crystal growth and electro-optic materials.Our standard modulators use undoped lithium niobate. For higher-poweroperation, we offer MgO-doped lithium niobate. The standard EOmodulators are broadband DC-coupled, and a high Q resonant modeloption is available.
Our standard DC-coupled broadband EO modulators consist of an EOcrystal packaged in a housing optimized for maximum RF performance.The RF drive signal is connected directly to the EO crystal via the SMARF input. An external RF driver supplies the drive voltage for the desiredmodulation. The crystal may be modulated from DC up to the frequencylimits of the external RF driver.
For flexibility, Thorlabs also offers a second modulator option. Resonantfrequency modulators simplify the driver requirements for manyapplications where the modulator is operated at a single frequency. A highQ resonant tank circuit located inside the modulator boosts the low-levelRF input voltage from a standard function generator to the high voltageneeded to get full depth of modulation. Call our tech support team fordetails on the specific resonant frequencies available.
EO Amplitude ModulatorThe electro-optic amplitude modulator (EO-AM) is a Pockels cell typemodulator consisting of two matched lithium niobate crystals packaged ina compact housing with an RF input connector. Applying an electric fieldto the crystal induces a change in the indices of refraction (both ordinaryand extraordinary), giving rise to an electric field-dependent birefringence,which leads to a change in the polarization state of the optical beam. TheEO crystal acts as a variable wave plate with retardance linearly dependenton the applied electric field. By placing a linear polarizer at the exit, thebeam intensity through the polarizer varies sinusoidally with linear changein applied voltage.
High Voltage Amplifier Specifications ±200V Bipolar Output
200mA Pulsed Output Current (100mA
Continuous)
1MHz Bandwidth
600V/µs Slew Rate
-20V/V Gain
EO Phase Modulator Our Electro-Optic phase modulators (EO-PM) provide a variable phase shift on a linearly polarized input beam. The input beam islinearly polarized along the vertical direction, which is the Z-axis of the crystal. A voltage at the RF input is applied across the Z-axiselectrodes inducing a change in the crystal's extraordinary index of refraction and thereby causing a phase shift in the optical signal.
The control signal may be a DC or a time varying RF signal. When the control voltage is a time varying signal, the optical beamundergoes frequency modulation whereby some of the energy at the fundamental frequency is converted into sidebands separated from
the fundamental frequency by the integer multiples of themodulating frequency. The amount of energy converted intosidebands is determined by the depth of modulation.
Wavelength RangeC1 600nm to 900nmC2 900nm to 1250nmC3 1250nm to 1650nmC4 400nm to 600nm
Clear Aperture Ø2mmInput Connector SMA FemaleHalf Wave Voltage, V 240V@1064nm
Max Optical Power Density 2W/mm2 @ 532nm,4W/mm2 @ 1064nm
Capacitance 14pF (typical)
High Voltage Amplifier for EO Modulators Our high-voltage amplifier is designed to directly drive the electro opticmodulators. It features a large output span, pulsed output current, widepower bandwidth, and low noise. A voltage gain of 20x boosts the input upto the high voltages needed to drive our lithium niobate broadbandmodulators. The DC bias control consisting of a 10-turn potentiometerwith a digital readout provides precise control and repeatability. The biasadjustment is used to shift the DC level of the output as needed. A voltagemonitor output is provided to allow real-time monitoring of the high-voltage output.
Swivel Polarizer Mount for EO Modulators Our new EO-PMT Swivel Polarizer Mount provides an easy way to mount oneor two of our 5mm calcite Glan-Thompson polarizers (GTH5M) directly ontothe EO Modulator, eliminating the need for separate polarizer mounts.
The pivoting swivel mount is an exclusive feature of our polarizer mount thatallows the polarizer to be rotated easily allowing full access to the modulatorinput and output apertures without having to remove the polarizer. Thisfeature is handy for beam alignment and other diagnostic purposes.
The EO-GTH5M packages the Glan-Thompson polarizer (GTH5M) with themounting adapter.
Swival Polarizer Mount Specifications 13mm Diameter Aperture for Use With
