optimization of wdm system architecture using 100g technology
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Optimization of WDM system architecture using 100G technology
Guillaume Crenn, Product Line Manager
Presentation Agenda
100G Market & Technology overview
100G benefit in WDM networks
Potential issue and Workaround
Next step to increase system capacity
Page 2
100G Market status
Explosive Growth in Ethernet/IP Services/Traffic
CAGR: 2009-2016: 13.2%
Source: Ovum
Ethernet Services Revenue
Page 4
Explosive Growth in Ethernet/IP Services/Traffic
Source: Cisco
IP Traffic Growing at a much faster rate than Ethernet Services Revenue
CAGR: 2010-2015: 32%
Page 5
Explosive Growth in Ethernet/IP Services/Traffic
2008 2009 2010 2011 2012 2013 2014 2015 20160
100000
200000
300000
400000
500000
600000
700000
800000
900000
Services Greater than 1G
Services Greater than 1G
Services at rates greater than 1G growing at an alarming rate
Market is driving demand for higher rate services at a lower cost
CAGR: 2008-2016: 35.8% - 10G services Grew > 60% CAGR
Source: Ovum
Page 6
How are Service Providers Reacting? (1/2)
Ethernet Services and IP Traffic Growth Result in Huge Growth in Global Bandwidth Demand Page 7
How are Service Providers Reacting? (2/2)
2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 20160
50,000
100,000
150,000
200,000
250,000
40G & 100G Volumes
40G & 100G Volumes
Service Providers are putting in bigger Pipes Today to better utilize expensive fiber infrastructure
Source: Ovum
Page 8
100G technology overview
100G transmission technology
10G transmission mainly uses NRZ modulation and Direct detection OOK-NRZ (On Off Keying – None Return to Zero) modulation format
40G transmission: different type of modulation used by different vendors No real 40G standardization Direct or coherent detection technology available
100G: Standardization of the line interface This standardization has caused the technology to mature faster than 40G and
therefore will result in a higher adoption rate
Same technology used by all players on the terrestrial 100G market today DP or PM-QPSK modulation Format and Coherent receiver Optical design similar for all competitors Performance differentiation at DSP level
Page 10
Routers are rapidly moving toward 100G interconnect to accommodate the increase in IP traffic
Native 100G client interfaces standardized and available
Numerous component vendors have introduced 100G technology to the market in the last 3-6 months causing the economics to improve quickly
Physical Layer 100 Gigabit Ethernet7m over Copper Cable 100GBase-CR10100m over OM3 MMF 100GBASE-SR10125m over OM4 MMF 100GBASE-SR1010km over SMF 100GBASE-LR410km over SMF 100GBASE-LR1040km over SMF 100GBASE-ER4
100G transmission technology
Page 11
100G Competition Status
Field trial over Long haul routes achieved on operators live networks since 2 to 3 years Few 100G channels added on live 10G and 40G networks
First network deployment announced beginning of last year (2011 H1) Few Metro Networks already running at 100G
1rst commercial route for 100G traffic: Paris-Frankfurt
Massive 100G network deployment since 2011 H2 and 2012 H1
Transponders (native 100G client ports) and Muxponder (aggregation of 10G client ports in a 100G line available in all 100G players portfolio Page 12
100G benefits in WDM networks
100G Network design rules Utilizes the same hardware as 10G and 40G (filters, amps,
etc.) Compatible with all MUX/DMUXs, ROADMs, OADMs, already installed in your
network Works with both 50GHz and 100GHz channel plans Utilizes standard ITU Grid
Required OSNR around 14 dB Compatible with the large majority of 10G and 40G installed systems Transmission over 3000 to 4000 kilometers
±50 000 ps/nm of Chromatic dispersion tolerance Much more tolerant than the 10G or 40G optical interfaces 10G tolerance around 2000 ps/nm max
PMD tolerance > 30ps (100ps of DGD) Much more tolerant than the 10G or 40G interfaces 10G tolerance around 10 to 12 ps Page 14
100G deployment: green field
Green field deployment: new WDM network based on 100G only High capacity backbone network
Capacity per fiber pair increases by a factor 10 compared to 10G design
Granularity to lower bit rate client ports using Muxponder Client ports can be 100G, using transponders Client can also be 40G, 10G or lower by using Muxponder
Infrastructure Cost reduction on network infrastructure due to dispersion compensation removal
Page 15
Real Life Customer Scenario
3200 Km Network – 38 spans ranging from 66km to 150km100G does not require dispersion compensation like 10G.
Eliminating Dispersion Compensation Saves 37%(On commons: chassis, amps, dispersion, management cards)
This can be used to pay for sellable customer services
Deploying with 100G instead of 10G paid for the first 100G Channel!
ODC ODC
ODC ODC ODC
Page 16
100Gb/sAdditional wavelength
Ekinops PM C1002/C2002
100G TRP or MXP
100Gb/sAdditional wavelength
10G/20Gb/sAdditional wavelength
100G TRP or MXP
Upgrading Existing Systems with Additional 100G capacity100G FEC allows good performance over existing line
systemsSame OSNR and power per channel range for existing
10G/40G channels and new additional 100G channels
100G deployment: Upgrade and optimization of existing systems
Page 17
100G Option for Expanding Capacity
100G performance: = to or better than most 10G systems
100G Alien waves can use existing 10G design rules with potential bypassing of regens
Page 18
12.7 km3.2 dB
109.4 km23.1 dB
105.1 km21.4 dB
102km21.1 dB
48km10.1 dB
105.5km21.5 dB
100.2km20.4 dB
109.6km23.9 dB
POP-1
POP-4ReGen, Add/Drop
POP-2 POP-3
Hut-1 Hut-2 Hut-3 Hut-5 Hut-6 Hut-7
58.6 km12.3 dB
Hut-14(10G ReGen)
Hut-8 Hut-9
POP-5 POP-6
Hut-11Hut-10 Hut-12 Hut-13 Hut-18Hut-17Hut-16Hut-15
120.6km20.6 dB
107.1km21.5 dB
107.5km21.3 dB
105.3km20.6dB
104.5km20.3dB
105.4km20.5dB
100.4km19.8dB
100.2km19.5dB
94.5km18.9dB
64.6km12.8dB
102.8km20.3dB
98.4km19.3dB
90.2km17.7dB
85.3km17.1dB
100G
100G
100G
POP-7
100G Express
Typical 10G Ekinops 100GPMD 10-12 ps 30 psDispersion ~ 300-700 ps/nm 50,000 ps/nmDistance ~ 2,500 km > 3,000 kmOSNR 16-17 dB 14 dB w/DynaFEC
32 Channel System, 30 Channels Lit
Field Trial
9-Spans, 751 km
Extending to Full Route
14-Spans, 1,387 km
100G Option for Expanding Capacity (Continued)
Eliminate the need for equipment upgrades to existing 10G systems Avoid: Cost of new filters, amps, DCM, etc. Cost of field tech’s deployment, planning, etc. Downtime, customer satisfaction / SLA issues
And with a smaller form factor… Eliminate space & power issues 1 RU: Rack chassis even in very tight spaces 230W (4.8A): Run power cables to existing fuse panels
No new power cables to BDPPage 19
12.7 km3.2 dB
109.4 km23.1 dB
105.1 km21.4 dB
102km21.1 dB
48km10.1 dB
105.5km21.5 dB
100.2km20.4 dB
109.6km23.9 dB
POP-1
POP-4ReGen, Add/Drop
POP-2 POP-3
Hut-1 Hut-2 Hut-3 Hut-5 Hut-6 Hut-7
58.6 km12.3 dB
Hut-14(10G ReGen)
Hut-8 Hut-9
POP-5 POP-6
Hut-11Hut-10 Hut-12 Hut-13 Hut-18Hut-17Hut-16Hut-15
120.6km20.6 dB
107.1km21.5 dB
107.5km21.3 dB
105.3km20.6dB
104.5km20.3dB
105.4km20.5dB
100.4km19.8dB
100.2km19.5dB
94.5km18.9dB
64.6km12.8dB
102.8km20.3dB
98.4km19.3dB
90.2km17.7dB
85.3km17.1dB
100G
100G
100G
POP-7
100G Express
32 Channel System, 30 Channels Lit
9-Spans, 751 km 14-Spans, 1,387 km
• No need to deploy a new WDM system if you are missing capacity• Even If 10G is your primary service rate, you can get 10x 10G into
the same spectrum as 1X 10G previously
10G10G10G10G10G10G10G10G10G10G10G10G10G10G10G10G10G10G10G10G10G10G10G10G
10G10G10G10G10G10G10G10G10G10G10G10G10G10G
10G
10G
10G
10G
10G
10G
10G
10G
10G
10G
9 free ports available for additional deployment
10 X 10G channels
10 X 10G channels
1 X 100G channel
100G deployment: Upgrade and optimization of existing systems
Page 20
100G Muxponder
100G Issues and workaround
100G potential issue
Issue with Most 100G solutions
Only available in large form factors not suitable for applications with limited space
Footprint can also be an issue in co-location environmentsBut: Some low footprint solution are available for limited
space
Cost: 100G Muxponder designed for Long haul today remain more expensive the 10 X 10G TRP
But: a)The cost savings on Infrastructure deployment can
reduce the Price Gap for green field deploymentb) 100G standardization with all component suppliers
working on the same technology, will lead to efficient price reduction on 100G market Page 22
Ekinops Proprietary information
Next steps for WDM systems
Optical EvolutionFlex Coherent Flex Coherent (100G)
Modulation format evolution for distance versus capacity optimization
DP BPSK, DP QPSK, DP 8QAM, DP 16QAM
Trade-off of Spectral efficiency versus OSNRModulation
Distance (km)
Total capacity
Application
DP BPSK 6000 4 Tb/s Very Long Haul & Submarine
DP QPSK 3000 8 Tb/s Long Haul
DP 8QAM 1500 12 Tb/s High capacity route
DP 16QAM 750 16 Tb/s High capacity routePage 24
100G Optical EvolutionWave Bounding /SuperChannel
400Gb/s -1Tb/s100G use 50Gb/s DSP and 25GHz Optical receiver
(available today)1000G (1T) will require 500Gb/s DSP and 250GHz optical
receiver Such type of DSP will not be available before the next decade
Wavebonding: the information is distributed over several subcarriers spaced as closely to form a SuperChannel (example 10 x 100Gb/s @50GHz :500GHz)
Page 2510 x 100G = 1Tb/s @ 500GHz
100G Optical Evolution Flex Grid Spectrum efficiency optimization
No need to keep 50GHz between sub carriers 37,5GHz is enough for DP-DPSK
Page 26
10 x 100G = 1Tb/s @ 500GHz
10 x 100G = 1Tb/s @ 375GHz
100G Optical Evolution Flex Grid Each Sub-Carrier transporting a lower Bit Rate,
compatible with current 100G components
Flex-Spectrum DWDM filtering is adopted enabling Multi-carrier add and drop.Current ROADMs are already compatible with flexgridCapacity to Add & drop full or sub-part of each super
channel Page 27
10 x 100G = 1Tb/s @ 375GHz
SuperChannel #1
10 x 100G = 1Tb/s @ 375GHz
SuperChannel #2
10 x 100G = 1Tb/s @ 375GHz
SuperChannel #3
Optimized Hybrid Amplifier (Erbium/Raman)For 100G /400G/1T transport.Optimization of the Bandwidth,Optimization of the noise flatnessOptimization of the noise figure at nominal point
Page 28
100G Optical Evolution Optical amplifier schemes
Thank You
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