UK Feasibility Studies for PIANO+ Work group 16 workshop

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					UK Feasibility Studies for PIANO+
    Work group 1/6 workshop

    Michael Robertson, CIP Technologies
             Mike Wale, Oclaro
           Photonics21 Annual Meeting

              14th – 15th January 2010
          Radisson Blu Royal Hotel Brussels
UK TSB Feasibility Projects
• Small UK projects to act as feed-ins to PIANO+
• Two rounds of competition, 12 chosen, all less
  than 6 months duration
• Also associated with UK government “Digital
  Britain” strategy
• 3 main topic areas
  – Cheaper sources
  – WDM-PON
  – Others
• Detailed presentations at www.ppektn.org
Optical Access Roadmapping
• Roadmap for Broadband Optical Internet
  Access Towards 10Gbit/s Everywhere
• Lead – Oclaro
• Partners – Ericsson, CIP, BT, Gooch and
  Housego, Cambridge Uni, Swansea Uni,
  Essex Uni, UCL
Sources

Project    Lead         Partners    Topic
HIGH BID   Gooch and    Oclaro      High volume photonics
           Housego                  packaging for bi-di
                                    components

ALOHA      CST Global   IQE         AlInGaAs Lasers for Optical
                                    Home Access


LEXION     IQE          CST Global Laser sources for Extended
                                   reach Interconnected Optical
                                   Networks
   WDM-PON

Project                        Lead        Partners                          Topic
                                        ADVA
                                                          Feasibility Examination of low Cost,
Low cost Tunable ONUs    Oclaro         BT
                                                          Tunable ONUs for WDM PONs
                                        Cambridge Uni
                                                          Feasibility study related to low-cost, high-
                         ADVA Optical   CIP
WDM-PON OLT system                                        density, scalable WDM-PON OLT
                         Networking Ltd Oclaro
                                                          Subsystem
                                                          Feasibility study for Uncooled Tunable
Uncooled tunable laser   CIP            Greenwich Uni
                                                          laser for WDM-PON
                                                          Uncooled High Speed Relective
Uncooled RSOA            Amphotonix     Strathclyde Uni
                                                          Semiconductor Optical Amplifier
AWG based WDM                           Gemfire           WDM Access Networks Based on Arrayed
                         Oclaro
network                                 Essex Uni         Waveguide Gratings
Others

Project    Lead      Partners         Topic
HOWL       CST       Glasgow Uni      High performance Optical Wireless
           Global                     Links for home access

Digital    Oclaro    UCL, Nokia       Ultra-high-density WDM access
coherent             Siemens          networks employing coherent
                     Networks         transmission technology
Radio over Zinwave   Alps Electric,   Next generation radio over fibre
fibre                Cambridge        distributed antenna systems
                     Uni
Roadmapping project

• “Roadmap for broadband optical internet access towards 10Gbit/s
  everywhere” (BC017J)
• Partners: Oclaro, Ericsson, CIP, Gooch & Housego, BT, Cambridge,
  Swansea, Essex Univ., UCL
• Examining systems architectures and physical equipment design for next-
  generation networks
• Comparing solutions from technical and economic viewpoints
• Identifying upgrade paths from existing systems
   – TDM, WDM-PON, Hybrid TDM-WDM, Coherent, …
• Establishing roadmap for future development „towards 10Gbit/s
  everywhere‟.
Objectives and Boundary Conditions
   – 10Gb/s, on demand, „anywhere‟ by 2020
   – Symmetric(-ish)
       • Usage patterns similar to today
   – Constant household spend on broadband services
   – Network cell:
       • 10,000 customers
       • 10-100km reach (60km max eventually adopted)
   – From core to customer
   – What architectures will provide this ?
       •   Costs
       •   Timescales
       •   Energy consumption
       •   Component evolution / challenges
   – Identify topics for future study
 Factors to consider in assessing new technologies

• Capability of systems to meet traffic growth
    – Deployed systems need to have a useful life
• Reach and split capability (power budget)
    – We don‟t want to have to move head end nodes and redesign metro/core
      network
• Power consumption
    – CO2 reduction initiatives
• Footprint and port density
• Evolution from previous technology (e.g. GPON)
    – How can we gracefully migrate from the last technology. Ideally, can we
      reuse the fibre plant?
• COST!
    – Customers always expect more for the same price
A Vision of Future Access Architectures




• Need to minimise network equipment and power drives longer spans
• Access and Metro/Backhaul technology will converge
Existing Systems
• TDM – PON
   – Predominant system
     implementation today
   – Available at acceptable cost
   – Passive nodes away from
                                             1490nm
     central office
   – Two main standards: GPON
     and EPON                       1310nm



   – Generally limited to 100Mb/s
     per user, GPON can offer
     users full bandwidth of PON
     (2.5Gb/s) for burst data

• Point-to-Point Ethernet
What options exist for NG-PON2?

                             • Pure DWDM
                             • Hybrid TDM/WDM
                             • Coherent Networks
                             • Complex modulation
                                –OFDM, CMDA
                             • Soft-Optics
                                –Cognitive systems
                                 (simplification of
                                 components)
                             • High level photonic &
                               Electrical integration
    Topologies
•   As part of the roadmapping exercise, the following topologies were identified for detailed study:
    WDM-PON: Wavelength Division
    Multiplexed Passive Optical Network

     OLU/ OLT/ head end

             Controller             BC015L,                 ONT/ ONU subscriber end
                                              Remote Node
                                     “OLT”
                 Tx                                                   Controller




                                                                                   Data I/F
      Data I/F




                                                                    Tunable
                                                                      Tx
                 Rx                                                  Rx


                                                                 BC012E,
                                                BC040K,           “ONU”
                                                 “AWG”
                          BC040K,
                           “AWG”


•    Low cost, tunable ONUs for WDM-PONs (BC012E)
      – Oclaro, ADVA Optical Networking, Cambridge University, BT
•    WDM access networks based on arrayed waveguide gratings (BC040K)
      – Oclaro, Gemfire, Essex University
•    Low-cost, high-density, scalable WDM-PON (BC015L)
      – ADVA Optical Networking, CIP, Oclaro
Coherent Access Network
  rural & suburban
                                                                                          Long
                                                                                     distance office


     dense urban                                             NGOA
                             cell sites       Passive
 VDSL2 CATx




                                              Splitter




                                                   Key benefits
                                                    Unshared individual bandwidth (Up/Down)
         enterprises                                Separate metro aggregation no longer needed
                                                    Reuse of existing metro fiber network
 small/medium
                                                   Technology needs
  large                                             Coherent receiver technology
                                                    Advanced tunable lasers, integrated photonic
                                                     circuits, digital signal processing
 c/o Nokia Siemens Networks


  • Wavelength-agile digital coherent access network (BC039H)
              – Partners: Oclaro, UCL, Nokia Siemens Networks
Possible evolution paths
               2009                                                 2020

                                            new access + core           Anyone can have useful
  Bullish                                                               10Gb/s on demand

                      GPON + wireless ?         WDM-PON
                      CAT 5
                                                                        1Gb/s on demand
                                             core

                 GPON + wireless ?
                                          contention → what is rate ?   100Mb/s on demand




                           FTT Cabinet / Wimax




                                                                        The „lucky/rich‟ few
Conservative                                                            will have 10Gb/s
                        10Gb/s PON           ‘nothing much to do’
 Technology adoption curves




                                                                     100Mbps
                                                          40Mbps




                                                                                 20Gbps
                                                  2Mbps
100 %
           POTS                                                                           10Gbps
        56k Modem      ‘Digital Britain’ USL

                                                               10Gbps ‘everywhere’




                                                                                                    Access Bandwidth Requirement
                                                                                          1Gbps




 50 %                                                                                     100Mbps




                                                                                          10Mbps

                                  40% by Mar’13


                                                                                          1Mbps
 0%
               2000                      2010                       2020
                      Ebbsfleet
                                                                      Timeline

                                                          Towards 10Gbps everywhere
    Component challenges
•    Goal is to have technology for high bandwidth, uncontended, long reach access
     network in the timescale of around 5 years
•    Long reach allows the network operators to reduce operating expenditure
•    WDM is a key element in almost all scenarios
•    Availability of low cost, high performance WDM components is critical: ‟Metro
     performance at access prices‟
      –   Low cost passive components (cyclic AWG etc.)
      –   Low cost integrated transceiver arrays (with and without mux/demux)
      –   Low cost burst-mode transmitters and receivers with good performance
      –   Low cost tunable laser for CPE
      –   Fast tunable lasers for burst-mode (for head-end and CPE)
      –   Scheduling algorithms for hybrid TDM/WDM PONs
      –   Low cost Reflective or Injection-Locked devices for CPE
•    Coherent transceivers
      –   Proof of concept, performance improvement, cost reduction, integration, power consumption
          reduction
      –   DSP for coherent systems – effective algorithms, efficient implementations
 Summary

• New services will demand new architectures and technology
   – Growth rates seen in the last decade will be sustainable only by continuous
     innovation in photonic technology
   – Environmental/power efficiency aspects increasingly important
• Breakthroughs in systems performance/cost effectiveness come from:
   – Innovation in systems architectures
       • Flexible, future-proof architectures, e.g. WDM-PON, coherent, …
       • Access/Metro network convergence, long reach access
   – Innovation in optical devices and equipment design
       • Tunable lasers, photonic integration, advanced packaging, digital signal
         processing, ..
• Current TSB-supported Photonics21 projects have addressed key questions
  for next-generation access systems and provide a sound basis for future
  work in PIANO+