How do optical components enable tomorrow's broadband ...

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  • 1. Next-Generation FTTH: Architectures and Enabling Components Rajeev Ram MIT Center for Integrated Photonic Systems In collaboration with Communications Futures Program
  • 2. Optical Broadband Working Group Industrial Group Members JDSU Motorola Nokia BT Telecom Italia Alphion Neophotonics Additional Contributors Corning Luminent Vitesse Novera Intune Verizon Cisco Broadcom KAIST AT&T Ovum Infinera UC Berkeley Lightwave Research
  • 3. FTTx Drivers
    • Ever increasing demand for bandwidth, including IPTV
    • Need to significantly lower network costs (rising faster than revenue)
    • Rapidly advancing technology and declining equipment costs
    • Public policy
    • Standards
  • 4. The Need for Speed
  • 5. FTTX Deployment Status
    • Worldwide deployment accelerating
      • 11M subscribers in 2005
    • Asia leading in users, but other regions rapidly rolling out systems
    • In the U.S., >1000 communities have FTTx service today
      • 8M homes passed
      • 1.3M subscribers, forecasted at >10M by 2011
    • In Europe, forecast for 49% CAGR from 2005-10
      • 25M Optical network terminals
    • PON equipment sales of $965M in 2006, forecasted to be $2.4B in 2010
  • 6. Today’s Advanced PON GPON Overview Small Businesses New Buried Development Splitter 2.4 Gbps shared by up to 128 users 2.4 Gbps out 1.2 Gbps in 10-100 Mbps service rates 20 km reach 1 2 3 4 1 4 2 3 Time Division Multiplexing Splitter OLT ONT ONT ONT ONT Splitter ONT ONT Splitter ONT
  • 7. Today’s Advanced PON GPON Overview ONT ONT POTS Power & Battery Video Data
  • 8. Today’s Advanced PON GPON Overview ONT ONT POTS Power & Battery Video Data 1310 nm 1490 nm Downstream Upstream Voice and Data 1550 nm Video Voice and Data Bandwidths & Services
  • 9. Today’s Advanced PON GPON Overview ONT ONT POTS Power & Battery Video Data 1310 nm 1490 nm Downstream Upstream Voice and Data 1550 nm Video Voice and Data Bandwidths & Services
  • 10. Today’s Advanced PON GPON Overview ONT ONT POTS Power & Battery Video Data 1310 nm 1490 nm Downstream Upstream Voice and Data 1550 nm Video Voice and Data Bandwidths & Services
  • 11. Fast Clockspeed Networks
    • Convergence of telecom and access networks – a high volume market for high performance components
      • single frequency lasers & sensitive detectors
      • new leaders
    • 10x scaling of manufacturing and assembly
      • More than 200k triplexers per month
    • Driving new technologies for rapid deployment
      • Burst mode electronics (shared bandwidth components)
      • Broadband amplifier systems (reach extension to rural communities)
  • 12. Metro Edge Optical Access Network WDM-PON GPON LR-PON Metro Core Next-Gen Broadband Architecture Options
    • WDM PON: Dedicated wavelengths (high capacity) per user
    • Long Reach PON: Consolidation of metro (telecom) and access networks
  • 13. WDM-PON Metro Core Inventory Management for WDM PON
      • No bandwidth sharing on the transport layer
        • Flexible and simple Bandwidth/Subscriber allocation
      • Virtual POINT TO POINT (Secure Networks)
      • Physical POINT TO MULTIPOINT (Shared Fiber Infrastructure)
  • 14. WDM-PON Metro Core Inventory Management for WDM PON Remote node in manhole Largest market for athermal ‘integrated’ wavelength filters
  • 15. WDM-PON Metro Core Inventory Management for WDM PON Remote node in manhole Largest market for athermal ‘integrated’ wavelength filters How do you sell the same hardware to every user in a wavelength selective network ? ?
  • 16. WDM-PON Metro Core Inventory Management for WDM PON Modulate and reflect light to CO w/ filtered white light w/o filtered white light Injection Locking (KT Field Trial) How do you sell the same hardware to every user in a wavelength selective network ?
  • 17. Metro Edge Optical Access Network GPON LR-PON Metro Core Long-Reach PON Architecture Optical Amplifier 100 km reach 1000:1 splitters Trade CapEx for OpEx: Fund edge components by closing down COs
  • 18. MIT Modeling Activity Overview Network Model Inputs Network Design Model Network Design Network Constraints Network Cost Models Network CapEx Network OpEx Demand Demographics Technological Constraints Operating Context Central Office Siting Splitter Siting Fiber Plant Siting Component Costs Labor Costs Resource Costs
  • 19. Network Design Model: Validation Model Inputs Model Outputs 10283 10658 N/A N/A Stage 2 Splitters 2607 2634 294 263 Stage 1 Splitters 10658 10357 717 758 Route Length (km) 3 1 Central Offices 20 12 Reach (km) 2.5 2.5 Data Rate (Gbps) Cascaded 1x4 1x8 Non-Cascaded 1x32 Splitter Strategy 71176 71331 7228 7353 Homes Passed (2) MIT (2) Corning (1) MIT (1) BT Scenario
  • 20. OpEx Involves Multiple Parameters Model Input Parameters: Network Components: Industry Data (Bottom-up) Field Data (Top-Down) Material Repair/Replace Costs Extrinsic Failure Modes Observed FIT Rate Data Failure Mode FIT Rate Data Administrative Labor Rents Power Costs Resource Costs Man-hours to Repair/Replace Intrinsic Failure Modes Connectors Splices Non-OLT Central Office Fiber OLT Splitters ONT
  • 21. OpEx By Network Component $0 $10 $20 $30 $40 $50 $60 $70 $80 $90 (3) (4) (5) Annual OpEx per Subscriber CO Fiber Hardware 5km 20km 1x4,1x8 1x4,1x8 OpEx 52% Savings BC LR Total $77.59 Total $37.38
  • 22. Access Networks Designed for Change
    • Convergence of telecom and access networks
      • At the component level
      • At the architecture and network level
      • Drives working group discussions across the value chain
    • Driving new technologies for rapid deployment
      • Drives MIT research
        • WDM Optical Network Unit development
        • Burst Mode Electronics (1000x enhancement demonstrated in 2006)
        • High performance, low cost optical components (record performance amps)
        • Network OpEx models for driving architecture designs