Maximizing the efficiency of dwdm networks 100 gbs and beyond

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TIA 2012 Presentation

100G is here. We are at the cusp of a step upgrade in network fiber bandwidth from hundreds of gigabits to several terabits, an order of magnitude increase in capacity. So far, the 100G discussion has primarily been focused on optics and coherent detection i.e. the fundamental building blocks of 100G. This is akin to figuring out the “how to” of internal combustion – what must be determined now is the “engine block” that wraps around the technology to enable rapid and successful adoption.

We explore the mechanisms that can deliver 100G to your networks efficiently. Why? Because to successfully bring down the total cost of ownership any solution must address not just maximizing fiber investment but also lowering CAPEX and OPEX. We look at various mechanisms with a perspective towards 100G that affect efficiency of space, power and network utilization.

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Maximizing the efficiency of dwdm networks 100 gbs and beyond

  1. 1. 1 | © 2011 Infinera Corporation Maximizing the Efficiency of DWDM Networks 100Gb/s and Beyond Anuj Malik Solutions Marketing
  2. 2. 2 | © 2011 Infinera Corporation Evolving Network Requirements Capex + Opex / Revenue = Flat Bandwidth is soaring Revenue is flat 90% services ≤ 10G Scale Low TCO Efficient Even in 2017 Services Remain ≤10G* Sub 10G 10G 40G 100G
  3. 3. 3 | © 2011 Infinera Corporation Foundations of 100G Coherent Detection • DSP ASIC • High Gain FECDP-QPSK Modulation Fiber Capacity Advanced Modulation Coherent Detection Advanced FEC Foundation Features
  4. 4. 4 | © 2011 Infinera Corporation Quick Refresher On 10G Optical Engineering 1 0 1 0 1 0 1 0 1 0 1 0 TRANSMISSION RECEPTION
  5. 5. 5 | © 2011 Infinera Corporation5 With 100G … Modulation and reception techniques got complex TRANSMISSION RECEPTION AMPLITUDE MODULATION 1101 00 10 PHASE MODULATION DIRECT DETECTION Optical Mixer ... COHERENT DETECTION LO TIA ADCPD SIGNAL PROCESSING DSP
  6. 6. 6 | © 2011 Infinera Corporation PM-QPSK Transmitter This is a single carrier PM-QPSK transmitter implemented with discrete optics Im{Ex} Re{Ex} Im{Ey} Re{Ey} Modulators Power Splitter Polarization Beam Combiner
  7. 7. 7 | © 2011 Infinera Corporation Coherent PM-QPSK Receiver CMOS This is a single carrier PM-QPSK receiver implemented with discrete optics
  8. 8. 8 | © 2011 Infinera Corporation Challenge of 100G Networks PICs enables Simplicity & Scalability Simplified With Photonic Integration MUXPONDER EQUIVALENT MUXPONDER EQUIVALENT 100G Requires Many Components
  9. 9. 9 | © 2011 Infinera Corporation Look How IC’s Revolutionized Electronics More Functions Capabilities Reliability Less Space Power Unit Cost Photonic Integrated Circuits Revolutionizes Optics Source: Wikipedia
  10. 10. 10 | © 2011 Infinera Corporation Photonic Integration Creates Network Value …  Less Power  Less Space  More Scale  Simpler  Lower TCO 69% less # Modules/Cards 9,770 3,024 67% less # Chassis 568 189 33% less Rack Space 150% 100% 50% less Power 200% 100% 4D Junction; 1T/degree; 25% Add/Drop Capacity 100% ~250%~2-3X more 56% lower Total Costs 225% 100% *Data shown as per study on N. American Long Haul Collector Network
  11. 11. 11 | © 2011 Infinera Corporation Integrated Switching - Key For Network Efficiency Inefficient mapping of sub-l services into WDM l’s Inefficient l fill 10% fill 40% fill 30% fill 1 x 10G Svc 100G l 4 x 10G Svc 100G l 100G l3 x 10G Svc All Optical Architecture 10% fill 40% fill 30% fill 80% fill 1 x 10G Svc 100G l 4 x 10G Svc 100G l 100G l3 x 10G Svc Integrated WDM + Switch Architecture Integrated Switching enables network efficiency & lowers cost
  12. 12. 12 | © 2011 Infinera Corporation What is beyond 100G? The emergence of super channels LINE MODULE Delivers excellent optical performance Must be provisioned in a single operational cycle Operational Scale Fiber Capacity Next Gen Services Super-channel: several DWDM carriers combined on one line card to create a channel >100G Split Spectrum 500 GHz* (G.694.1 50GHz Grid) Contiguous Spectrum (aka “FlexGrid”, “gridless”) 375 GHz Types of Super Channels
  13. 13. 13 | © 2011 Infinera Corporation Large Scale PIC Implementation More Compact, More Efficient, More Reliable TX PIC Super-channel in a single line card Photonic Integration is the solution • Enables greater density • 10 x capacity in a DENSE FORM FACTOR RX PIC
  14. 14. 14 | © 2011 Infinera Corporation Integrated Switching: Abstraction of Client Side and Line Side Bandwidth Virtualization Super-Channel Line Card Super-Channel Line Card Super-Channel Line Card 500Gb/s PM-BPSK 1Tb/s PM-QPSK 1Tb/s 16QAM  Super-Channels may be different capacities • Requires flexible OTN container (OTUadapt)  Client services may vary from GbE to >100GbE • Bandwidth Virtualization is essential GbE 10GbE 100GbE Next Gen
  15. 15. 15 | © 2011 Infinera Corporation 100G Network: PIC + Integrated Switching vs All-Optical Typical regional/national network CAPEXOPEX 40% TCO Benefit 60% 30% 31% 32% 33% 34% 35% 36% 37% 38% 39% 40% Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8 Y9 Y10 TCO Benefit: PIC + Integrated Switching vs All -Optical ~40% TCO Benefit
  16. 16. 16 | © 2011 Infinera Corporation 100G Waves is Necessary, But Not Sufficient Advanced Modulation Coherent Detection Advanced FECScale Photonic Integration Integrated Switching Low TCO Efficient   
  17. 17. 17 | © 2011 Infinera Corporation Thank You

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