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Impact of Photonic Integration on Optical Services

This article discusses the impact of photonic integration on optical services and the scalability challenges in the industry. It explores the benefits of photonic integrated circuit (PIC) technology and the management of PIC capacity. The article also mentions the service opportunities and the transition to Ethernet-based services. Additionally, it examines the concept of an optical transport cloud and the use of GMPLS for restoration. Overall, the article highlights the potential of photonic integration in improving service speed, resiliency, and cost-effectiveness.

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Impact of Photonic Integration on Optical Services

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  1. Impact of Photonic Integration on Optical Services Serge Melle VP Technical Marketing, Infinera

  2. Internet Backbone Growth • Industry consensus indicates a sustainable growth rate of 75% to 100% per year in aggregate traffic demand • Traffic increased more than 10,000x from 1990 to 2000 • Traffic projected to increase an additional 1,000x from 2000 to 2010 [1] K. G. Coffman and A. M. Odlyzko, ‘Growth of the Internet’, Optical Fiber Telecommunications IV B: Systems and Impairments, I. P. Kaminow and T. Li, eds. Academic Press, 2002, pp. 17-56.

  3. The Future Belongs to Tb/s Links • Carriers deployed Nx10 Gb/s networks several years ago • Now evaluating deployment of (Nx) 40 Gb/s router networks • Current Backbone growth rates, if sustained, will require IP link capacity to scale to > 1 Tb/s by 2010

  4. Scalability Challenges • Service scaling: • Evolution to 40G and 100GbE services • Network scaling: • >1Tb/s per fiber • Nodal scaling • System size for >Tb/s nodes • Operations • Deployment, fibers, spares,

  5. 100 Gb/s Transmit 100 Gb/s Receive WDM Systems Today Single WDM channel - - - - - - - - - - - - - - - - times 32, 40 or 80 wavelengths

  6. 100 Gb/s Transmit 100 Gb/s Receive Photonic Integrated Circuit Innovation 100Gb/s Transmit 100Gb/s Receive 5mm • DIRECT BENEFITS: • Reduce size, power, cost and improve reliability over discrete optics • STRATEGIC BENEFITS: • Affordable OEO conversion re-enables digital reconfigurability at every node • Order-of-magnitude in capacity deployment & scalability • Result: Lower CapEx, lower OpEx, more flexible reconfigurable optical network

  7. Conventional WDM: Capacity deployed one lambda at a time OEO only at network edge Network service tied to the wavelength Managing bandwidth occurs elsewhere PIC-based WDM: Capacity deployed 100G at a time OEO at all service locations De-couple service layer from the transport layer Integrate DWDM with digital service switching Impact of PIC Technology Line Trib Transponder Line Trib

  8. How PIC Capacity Is Managed Scalability 10-l x 10G • 100G PIC = 10 x 10G lambdas = 40 x ODU1 • Sub-wavelength bandwidth management maximizes service delivery flexibility • Super-wavelength bandwidth management supports 40G and 100G services Flexibility 4 x ODU1 per 10G

  9. PIC Capacity Scalability Scalability 20-l x 20G • Increase PIC scalability through: • More channels (ie: from 10 to 20 lambda or more) • Higher bit rates (ie: from 10Gb/s to 20Gb/s to 40Gb/s) • Also increasing WDM line capacity to >1Tb/s per fiber Flexibility

  10. 1.6Tbit/s DWDM Large-Scale PIC Transmitter Announced at OFC 2006… …40 channels x 40 Gb/s

  11. Service Opportunities Transition to Ethernet • Bandwidth on Demand • Layer 1 Optical VPNs • UNI-based inter-network signaling New Service Opportunities Speed as a Sales Advantage • New Transport Services • 40G and 100GbE • Restorable bandwidth • Sub-lambda Switching

  12. Short Term Capacity Lease“Pay for Connectivity Only When You Need It” Optical Transport “Cloud” UNI UNI 10G “Port” UNI UNI UNI UNI Phase 2: GMPLS UNI automated provisioning Phase 1: Human provisioning

  13. Layer 1 VPN“A secure, private optical network without owning physical assets” Customer 1 Customer 2 EMS 1 1 GMPLS 2 2 Complementary to a dynamically allocated service 1

  14. 1 and 10GbE Lightpaths“Ethernet cost with SDH Manageability and Quality” Optical Transport “Cloud” • 10GbE: LAN PHY preferred to save router/switch port cost • Full transparency • Optional restoration (differentiate vs. “wavelength” service) DB DB DB DB DB DB  10GbE LAN PHY  DB DB DB

  15. 1-port 40G 40G over 4-port 10G 40G Super-Lambda Service40G IP Backbone Without Re-Architecting the Optical Network OC-768/STM-256 capacity router-to-router • Full 40G link utilization without 40G WDM link engineering or cost • Common transport network supports 40G router-router traffic • 40G service using either 1 x 40G or 4 x 10G router blades • Optional GMPLS restoration maximizes service SLAs 4 x 10G across the optical network Optical Transport “Cloud”

  16. = DWDM terminal = ROADM or WSS Using GMPLS Restoration for Lower MTTRMore Robust “Wave” Services Static Transport GMPLS-enabled GMPLS In case of failure, technician must restore service. Outage may last minutes or hours. If spare bandwidth is available, GMPLS reroutes, providing a “quick fix” at no additional cost. GMPLS-based transport system

  17. 100 Gb/s Transmit 100 Gb/s Receive Integration: Heart of a New Strategy New services, Speed, and Resiliency O-E-O: Manage Digital Bits PMs, Protect, Switch, Reconfigure Space, Power, Cost, Reliability, Scale Device Elimination Ethernet- GigE, 10G, 100G; GMPLS, UNI

  18. Thank You

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