Pluggable Optics in Metro DWDM
from 1G WDM PON SFPs to 100G digital coherent CFPs
Magnus Olson Director Hardware EngineeringTransmode
November 12th, 2014Optics and photonics in Sweden 2014 (OPS)
Mobile operators
Enterprise customers
Who we are
In Sweden:• 2nd largest telecom system vendor• 1 BSEK public company• Close to 300 employees• Large on opto
World wide:• Well-known in EMEA• Small world wide• Competing vs companies >10x larger• Early adopter of pluggable optics
What we do
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Boards and chassis fully designed and developed by Transmode
Optical modules specified by Transmode and procured from module vendors
Key development areas
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Capacity and reach
Flexibility Ethernet Metro access
Operation Support System
A complete portfolio for metro packet-optical networks
TG-Series Passive CWDM, DWDM and WDM-PON
High density for small footprint
Up to 100 km
Flexible upgrades with passive filters
Broad temperature range
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Managed through the Enlighten™ multi-layer management suite
Supports Layer 1/2/2.5
Flexible networking design, ROADMs
Multi-rate, anything up to 100G
Multi-service, e.g. Ethernet, CPRI, SONET/SDH, OTN, Fibre Channel
Multi-reach, up to 1500 km
Low Power Design
High Density Design
CWDM, DWDM and WDM-PON
TM-Series
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CATV/MSO Triple Play
FTTx/PON Triple Play
xDSLTriple Play
Mobile Backhaul
Long haul network
Storage Networks
Enterprise Networks
Metro and regional networks
Transmode is a Metro WDM System vendor
100G
WDM PON
…We are true early adopter of pluggable optics
Advantages with pluggable optics
Low development cost Bulk of work on module vendor ROI for module vendor from several system vendors
Highly flexible solution One board can be used with different pluggables optics;
Short/long reach, CWDM/DWDM, high/low data rate… One plug can be used in several different boards
Second source of transceivers Continuous price pressure Risk management; if one vendor fails there are options
Low cost of inventory, easy procurement Source optics and boards independantly Allows wavelength planning at later stage
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Opto module learning curves
Metro
Time
Cost
Transport
Access
Rx & Tx moduleDiscrete optics TRx module 1gen pluggable 2gen pluggable
1gen 10G -T 2gen: 300pin 3gen: XFP-T 4gen: SFP+T2007 2013
Ex: Transmode 10G tunable evolution
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0
200 000
400 000
600 000
800 000
1 000 000
1 200 000
1 400 000
CY05 CY06 CY07 CY08 CY09 CY10 CY11 CY12 CY13 CY14 CY15 CY16 CY17
Num
ber o
f por
ts
Time
Sub 10G (10M-2.5G) 10G 40G 100G
Source: Infonetics Research 2013
Access100M =>
1G
Aggregation1G =>10G
Metro10G =>100G
Migration of higher data rates further out in the network
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Colorless Injection-locked GbE SFP
Legacy Ethernet GbE Reach 20km
Based on the SFP format MSA compliant Fabry-Perot transmitter APD receiver optimized for injection-locked signal
What’s different from a standard SFP? Transmitter designed for DWDM injection locking
=> Automatic tuning to the right wavelength, determined by filter port Seeding signal
TX signal from SFP in other end
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WDM PON Solution overview
UL
Remote seeding
GbE
CO ODN CPE / ONT
SFP withInjection locked
FP Laser
CPE
UL
DL
DL
CO Switch
AWG
MD
U
AWG
MD
U
UL
DL
• Dual fiber SFPs• Same wavelength in UL and DL• One 40ch A-AWG for mux, one for demux
Full Compatibility with
Standard dual fiber DWDM
1G WDM PON and 10G tunable in the same network
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1,00E-12
1,00E-11
1,00E-10
1,00E-09
1,00E-08
1,00E-07
1,00E-06
1,00E-05
16 18 20 22 24 26 28 30
BER
Link budget over 20 km fiber [dB]
1G WDM-PON 10G tunable
1st on market
Unique 100G capabilities for metro / regional applications
Enables multiple applications; L1 DWDM and L2 aggregration
DSP Asic inside module => Standard digital interface
Metro optimized coherent optics
Low Power Design
Short and long reach applications
Same boards both for line side and client side optics
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DSP CFPx
Traffic unit
Common digital interface
100G optimized for metro – leading low power capabilities
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Transponder Muxponder EthernetMuxponder
1st on market
Conclusions
Higher data rates migrates from Transport towards access
Pluggable optics enables flexibility and low cost
Transmode has developed unique pluggable solutions –
From 1G WDM PON SFPsTo 100G Coherent PM-QPSK CFPs
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