Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Emerging Trends and Applications for Cost Effective ROADMs

  • Be the first to comment

Emerging Trends and Applications for Cost Effective ROADMs

  1. 1. © Finisar Corporation Confidential 1 Ken Garrett Emerging Trends and Applications for Cost Effective ROADMs
  2. 2. © Finisar Corporation Confidential 2 Increasing Network Agility ROADM Network Applications ROADM implementation • Wireline • MSO Data Centers Wireless Backhaul • Utilities
  3. 3. © Finisar Corporation Confidential 3 WSS/ROADM Demand Continues to Grow Higher Port Count WSS fastest growing area in the next 3 years 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 0 10 20 30 40 50 60 70 CY05 CY06 CY07 CY08 CY09 CY10 CY11 CY12 CY13 CY14 CY15 CY16 CY17 CY18 CY19 PercentofWSSComponentUnits Units(Thousands) WSS (1x4 or less) WSS (1x5 to 1x9) WSS (1x10 or larger) 1x5 or larger + 1x10 or larger (%) Source: Infonetics Research May 2015
  4. 4. © Finisar Corporation Confidential 4  1998 COADM  2X2 switches and 8-16 channel mux/demux  Colored Add/Drop  High Cost  Limited Add/Drop  1999 - 2001 Wavelength Blocker  LC Array Technology  Colored Add Drop  Gain Equalization  High Cost  2003-2012 WSS & PLC ROADMs  100 GHz & 50GHz  Colored and Colorless ADD/Drop  Fixed Grid 50 GHz &100GHz Network Deployments  MEMS- LC- LCoS-PLC  1X2-1X9-1X16-1X20  Colorless and Directionless Applications  Cost Reduced 70% since 2005  Multiple Suppliers  The Next Generation ROADM Evolution – 4 Generations in 17 years WSS Price/Port 2000 2014
  5. 5. © Finisar Corporation Confidential 5  Colorless and Directionless Multiplexing / Demultiplexing  Enables critical wavelength and route flexibility  Contentionless as an “optional” enhancement  High Performance for 100G and Beyond  High wavelength isolation for higher modulation formats  High bandwidth cascadability  Flexgrid Channel Transmission  WSS, OCM, flexgrid multiplexing / demultiplexing  Intra-channel power measurement and equalization  Scalability for Large and Small Nodes  High Port Count and Dual WSS  8 – 16 node degrees  4 – 8 node degrees  Low Cost  Vertical Integration (Dual WSS- 2 in one)  Functional Integration (ROADM on a single slot card)  Lower Cost Add/Drop for CD (MXN WSS) Next Generation ROADM Network Features
  6. 6. © Finisar Corporation Confidential 6  Reconfigurable Optical Add Drop Multiplexer  Enables all-optical routing of individual wavelength channels through a node  Express routing  Add/drop  Wavelength channel power leveling  All-optical:  Avoid cost and power consumption of O-E-O on express paths  Remote configurability:  Rapid circuit provisioning  Reconfigure network in response to link or node failures  Lower maintenance and operations costs Functionality Benefits ROADMs: Basic functionality To Node B To Node C Local add/drop ports
  7. 7. © Finisar Corporation Confidential 7 Regional / Long Hall  Mesh  DWDM 50 GHz, Flexgrid™  100G/400G transmission  4 to 20-degree ROADM  CD/CDC  Restoration/40G-100G Overlay  40/100G Overlay  High power amps / Raman Metro/Regional  Ring or mesh  10G/100G/400G transmission  2-20 degree ROADM  Restoration  Multiple Coherent Modulations  40G/100G Overlay  Wireless Backhaul Metro Access  CWDM or DWDM 50/100 GHz  1G/2.5G/10G/100G transmission  Fixed OADM / ROADM  MESH + RING  Wireless Backhaul High Speed and Packet Business Services Triple Play 3G and LTE ROADM Application
  8. 8. © Finisar Corporation Confidential 8 RECONFIGURABLE CDC ROADM Wavelength Routing Apollo OPT9624 9D-ROADM (100 and 50Ghz spacing) 2D-ROADM (100 and 50Ghz spacing) Transmit any wavelength from any local port Colorless Transmit the same wavelength simultaneously to more than one directions Contentionless Transmit any wavelength to any direction Directionless • Most efficient use of spectrum • Ready for 400Gbps and 1Tbps Moving to “Gridless” Flexible Spectrum Uncompromised ability to route any wavelength anywhere in the network, with most efficient spectrum use ROADMS serve as a transport solution for SDN and NFV implementation
  9. 9. © Finisar Corporation Confidential 9 Data Center Interconnect- Example of an agile SDN –NFV type network application DC Site1 DC Site2 DC1/DC2 Interconnect provisioned path Content consumption provisioned path Alternate path for a temporary period Control Content Consumer (e.g. University) Connect DC1 to DC2 in highest priority Resume to “normal” configuration “OK” Data Center Manager
  10. 10. © Finisar Corporation Confidential 10 Broadcast and Select ROADM  Passive split on Drop-side  WSS on Add-side  AWG for wavelength mux/demux  Fixed Grid  Colored Add/Drop  100% Add/Drop of up to 96 channels  2x100 GHz AWGs on add side for lost cost  Fixed-grid OCM  Can make colorless by replacing AWG with High- Port Count WSS Classic (B&S) ROADMOCM 44 ch AWG 88 ch AWG44 ch AWG 1x9WSS 8x8 Span Crossconnect 8x8 Span Crossconnect 1x8splitter 88 ADD 88 DROP
  11. 11. © Finisar Corporation Confidential 11 20x1 WSS 1X20 WSS 20x1 WSS 1X20 WSS20x1 WSS 1X20 WSS 8x1 WSS 8x1 WSS Passive splitter Degree8 Degree1 Core switch Add/Drop D1’ D8’ 8x1 WSS Degree 2 D2’ Up to 8 directions (only 3 shown) 20 add ports 20 drop ports 20 add ports 20 drop ports 20 add ports 20 drop ports Multi-degree, Colorless and Directional Broadcast and Select Architecture  Interconnects multiple “degrees” or “directions”  WSS (tunable mux/demux) used for add/drop => “Colorless”  Add/drop ports tied to a particular direction => “Directional”
  12. 12. © Finisar Corporation Confidential 12 Route and Select ROADM High isolation and OSNR performance, Flexgrid WSS and High Resolution Flexgrid OCM Higher # of ports for degrees and CD/CDC add/drop scalability Filtered ports for lower power OA and Noise management Leverage coherent Rx self-filtering and low-cost splitter mux/demux Lower cost per port DROP ADD Dual 1X9 or Dual1X20 Two WSS = 1 HRes –Flexgrid OCM
  13. 13. © Finisar Corporation Confidential 13 20x1 WSS 20x1 WSS Degree8 Degree1 Up to 8 directions (only 3 shown) 20x1 WSS Degree 2 Core switch Add/Drop 1x20 WSS 1x20 WSS 13 add ports 13 drop ports 13 add ports 13 drop ports 13 add ports 13 drop ports 1x20 WSS Multi-degree, Colorless and Directional Route and Select Architecture  Tunable mux/demux WSS combined with core routing WSS  “Broadcast and Select” -> “Route and select”
  14. 14. © Finisar Corporation Confidential 14 Multi-degree, Colorless, Directionless and Contentionless Architecture using Dual WSS  M×N WSXC: Multi-input Multi-output Wavelength Selective Switch  MC-SW: MultiCast Switch 8x13 WSXC or MC-SW 8x13 WSXC or MC-SW 20x1 WS Or 1X9 WSSS 20x1 WSS or 1X9 WSS Degree8 Degree1 20x1 WSS or 9X1 WSSS Degree 2 Core switch Add/Drop 1x20 WSS 0r 1X9 WSSS 1x20 WSS 1x20 WS or 1X9 WSS 8x12 WSXC or MC-SW 8x13 WSXC or MC-SW 8x13 WSXC or MC-SW 8x13 WSXC or MC-SW Up to 8 directions (only 3 shown) 12 add ports 12 drop ports 12 add ports 12 drop ports 8x13 is only an example. It can scale to other values. Main advantage is that it is a pay as you grow architecture
  15. 15. © Finisar Corporation Confidential 15 Channel ADD/DROP Options  Direct WSS Port Drop/Add  Limited number of WSS ports  May limit amount of degree connections  Direct Detect and Coherent  Mux/DeMux  Colored versus Colorless  Direct Detect  WSS/Splitter  Coherent  May have high loss (dependent on size of splitter)  Multicast Switch  Colorless/Directionless/Contentionless  High Loss  Requires amplifier arrays  MXN WSS-High Port Count WSS  Colorless/Directionless  Coherent or Direct Detect WSS ?????? WSS ??????
  16. 16. © Finisar Corporation Confidential 16  One Dual MxN WSS  No optical amplifier  WSS Loss~7dB  Scales to 96+ channels  Flexgrid  ~50% size & cost reduction  Single Slot with low profile Dual aSplitter aCoupler 1x8 WSS 1x8 SS aSplitter aCoupler 8x13 WSS aSplitter aCoupler aSplitter aCoupler  Four 1xN WSS’s  Two optical amplifiers  Scales to 96+ channels  WSS Loss~14dB Prior CD Architecture Approach Dual MxN WSS CD Architecture 8X1 WSS 8X1 WSS 1X13 WSS 13X1 WSS Why MXN WSS? 8X13 WSS 13X8 WSS Amplifiers
  17. 17. © Finisar Corporation Confidential 17 40x1 WSS 40x1 WSS Degree8 Degree1 Up to 8 directions (only 3 shown) 40x1 WSS Degree 2 Core switch Add/Drop 1x40 WSS 1x40 WSS 32 add ports 32 drop ports 32 add ports 32 drop ports 32 add ports 32 drop ports 1x40 WSS Emerging Future Application: Higher Port Count WSS Node  Improving the add/drop port ratio with higher WSS port count-lower cost
  18. 18. © Finisar Corporation Confidential 18 Emerging Application: Intra-node Connection Verification ADDDual MXN WSS or MCS Dual MXN WSS or MCS Dual 2X1X9 or Dual 2X1X20 WSS allows for additional input port that offers loopback path for connection verification
  19. 19. © Finisar Corporation Confidential 19 Summary Next Generation WSS and Architectures provide a capability to upgrade and future proof service provider networks and address emerging inter-building/remote site data center applications. Higher Bandwidth-flexibility to transport 10G-400G+ SDN/NFV- On Demand ability remotely reconfigure and restore networks Colorless Directionless/Contentionless based upon cost and network requirements Although there are many technology options, the MXN WSS is the most cost effective colorless directionless solution The introduction of LCoS based Dual and High Port Count WSS continue to drive the cost/port down to provide new Applications, Cost Savings, and Operational Efficiencies
  20. 20. © Finisar Corporation Confidential 20 Thank You
  21. 21. © Finisar Corporation Confidential 21

×