Power Solution e

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DIAMOND SA / Titan und Krokodil / 08-06 / 1

DIAMOND Headquarters / E-2000 & F-3000 PS / 07-08 / 1

DIAMOND

Power Solution

Fiber optic interface for high power applications


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Why and how to obtain a high power

fiber optic connector


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Why a high power fiber optic connector?

The following questions must be answered:

Which are the most common installations today?

What are future market requirements?

What are the most important parameters of an optical connector?

We believe the answers are as follows:

Communication networks are getting bigger, and the information traffic every

day denser. The maximal power used in common fibers has now increased to

500 mWor even more.

Dense Wavelength Division Multiplexing(DWDM) technology allows sending

many different signals in the same line, each of them having a certain amount of

power, which added up in the main cable make it reach high power values.

An up-to-date connector must be suitable for long distance transmissionsandcustomer access furthermore present easy and secure handling, excellent as

well as repeatable optical parameters, also under rough conditions.


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High quality manufacturing process

Computer assisted active core

alignment extremely reduced core eccentricity

high precision tilt angle

measurementguarantee of higher random mating

repeatability

low connection lossesLow energy dispersion


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Safety trough connectorsprotection cap

Black chrome-plated metalprotection cap as a standardcomponent for E-2000 andF-3000 connector families.

Fully respects of current

security requirements Suitable for high power applications

The black chrome plated metal cap features superior protection thanany other previous solutions, presenting high optical isolation and very

resistant construction.


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Carbon reinforced protection caps for E-2000& F-3000 PS mating

adapters

Fully respects of current security requirements

tested 24 Std. with 1 W power (E-2000)

superior protection against undesirable radiation thanks to its high optical isolation

reduced temperature increase thanks to better thermal dissipation

Safety trough adapters protection cap


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High power technology


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High Power Connector

As the silica doesn't absorb the light, it doesnt warm up and so there is no risk inside the

fiber. The critical location is at the connections. At the junction, the fiber could be

contaminated by dust or any kind of dirt, and the material deposited on the fiber will absorb

part of the light and might warm up to a very high temperature, and hence there is a risk of

damaging the fiber.

In order to have a solution suitable for high power applications with max.

target power at 3 W, Diamond has developed a special E-2000 PS & F-3000 PS connectorsbased on standard components.

Within the fiber core, which has a diameter of 9 m, using a power of 1 W, thesuperficial power densityreaches a value of roughly 10-15 GW/m2.(Solar surface power density is 62.6 MW/m2)


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core diameter 9 m

transmitted power 1 W

power density 15 GW/m2

diameter of dirt particle 1 m

estimated temperature 2000 C

Simulation:

burnt SM fiber

Standard SM fiber

A perfectly cleaned connector can withstand up to 1 W without problems With a slightly contaminated connector, the dirt particles will absorb light

and convert it to heatDanger: the fiber could melt and collapse


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core diameter 40 m

transmitted power 1 W

power density 1 GW/m2

diameter of dirt particle 1 m

estimated temperature 400 C

Simulation:

Singlemode:

(spot 9 m)

High Power:

(spot 32 m)

Fiber with expanded beam

Solution: increase the mode field diameterat the connector interfacethe power density is lowered

to a harmless value


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Execution: use of a gradient index fiber(acts as a lens) to enlarge the spot

SM fiber GRIN fiber SM fiberGRIN fibersplice splice

connector1 connector2

10 GW/m2

1

0.1

Computer simulation:

Fiber with expanded beam


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High power production process


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Fiber splicing

Splicing of MM to SM fibers is critical because of material difference Diamond ZEUS fusion splicer with multimode and SM

fiber capability

Fiber-to-fiber alignment on 125m diameter

ZEUS fusion splicer Multimode to single mode splice


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Fibers after cleavageCleaver with video camera

High precision fiber cleaver

The fiber must be cleaved at the right distance (defines the focal length!)Fiber cleaver including microscope and video camera for

precise length measurement and splice quality assessment


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First crimping device

Ferrule holder

Centering and Curing

The fiber must be glued within the

ferrule in the right positionSpecial ferrule holder for the glue polymerization within

standard oven

Multimode fiber is verysensitive to stress becauseof larger core diameterFerrules are pre-

crimped (1 crimping)

with metal wire


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Collimation measurement

Expanded beam connectors are verysensitive to the focal lengthCCD camera to measure the collimation

during polishing steps

Measurement of diameter


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Pre-polishing (0)

High power connectors needpolishing process to optimize the

length of the multimode fiberManual polishing steps

Pre-polishing


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Active angle alignment

Angular misalignment induces high insertion loss because of lens system second crimping device: crimping is carried out to straighten the

output beam direction, not to reduce core eccentricity which is less

critical

before 2nd crimping: angle=0.5 IL=1.5 dB

after 2nd crimping: angle


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Final polishing (APC 4)

Automatic final polishingAPC 4 polishing

Achieve the right

geometrical parameters

Ensure optimal Return Loss

Polishing machine


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Technical specification

Sinlge Mode 4 APC Units Test conditionsInsertion Loss (IL) E-2000 typ 0.2 max 0.6 dB IEC 61300-3-4; 1550nm Random

Insertion Loss (IL) F-3000 typ 0.3 max 0.7 dB IEC 61300-3-4; 1550nm Random

Insertion Loss (IL) typ 0.2 max 0.4 dB IEC 61300-3-4; 1550nm Against ref.

Repeatability of IL max +/- 0.1 dB IEC 61300-2-2; 1300nm/ 1550nm

IL vs. wavelength max +/- 0.1 5 dB IEC 61300; from 1300nm to 1550nm

Return Loss (RL) MM min 75* dB IEC 61300-3-6; 1300nm/ 1550nm

Operating Temperature -40 / + 85 ** C

Storage Temperature -40 / + 90 * C

* Measured with high resolution reflectometer

** May be further limited by cable specifications.


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Transmission efficiency

Wavelength dependence: DIL/Dlmax. 0.15 dB/100 nm


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The product family


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E-2000 & F-3000 PS family

Use of the same basic parts to offer reliable optical and mechanicalperformances.

The PS connectors are suitable for Simplex, as well as for Backplane

applications, thanks to the high-tech modular design of their components.

E-2000 PS Simplex

F-3000 PS Simplex F-3000 PS Backplane

E-2000 PS Backplane


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Mating adapters with integratedspring loaded metal shutters

Additional safety for the operator

Protection against sleevecontamination

Integrated protective metal cap

Protection against eye-damaginglaser radiation

Reduction of dust and scratches

of ferrule front-faces

Integration of Expanded Beam

Technology within Diamonds

composite ferrule

Standard connector with reducedsensibility to contamination

suitable for power up to 3 W andabove

benefit

benefit

benefit

High-tech modular designedcomponents

Enables fiber- as well as cabletermination (up to 3mm)

High packing density (portspacing similar to RJ45 design)

benefit

E-2000 & F-3000 PS Features & Benefits


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E-2000 & F-3000 PSSimplexconnectors, ensure highquality performance, maintaining

channel independence and

flexibility.

Features of simplex connectors


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E-2000 & F-3000 PSBackplaneconnectorssystem, is also taking all

the advantages of the E-

2000 / F-3000 standard

backplane offering up to 6 /4 channels unit

Features of Backplane connectors

E-2000 6 channels

F-3000 4 channels


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Applications

The DIAMOND PS is a very versatile connector technology, which can

be used in many different applications:

Telecommunication Networks:

High bit-rates and long transmission distances

DWDM Systems (high optical power up to 3 Watts)

Data Processing Networks

Within harsh environments (with standard optical power up to 500mW):

Thanks to the connector less sensitivity to contamination


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Information label with safety precautions

Cleaning, handling and safety

information within cable or

pigtail package

Safety information for Power Solution connectors


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Safety Video Inspection Microscope

The ideal device to ensure

safety during front-face

connector inspection

Detailed ferrule inspection

enabling better assessmentfor cleaning

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