Internet 3 Optimizing Optical Networks with MultiHaul Networks

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Internet 3 Optimizing Optical Networks with Multi-Haul Networks December 7 th, 2006 Roy Bowcutt

Internet 3 Optimizing Optical Networks with Multi-Haul Networks December 7 th, 2006 Roy Bowcutt

Outline 4 Traditional WDM systems and real networks 4 Technology applied in real networks

Outline 4 Traditional WDM systems and real networks 4 Technology applied in real networks 4 Optimizing networks with multi-haul designs 4 Intelligent Integration using an intelligent control plane 2 © 2006 ADVA Optical Networking. All rights reserved.

Traditional Network Segmentation 4 Networking Solutions Optimized for Each Segment (Access, Metro, Regional, and

Traditional Network Segmentation 4 Networking Solutions Optimized for Each Segment (Access, Metro, Regional, and Long Haul) 4 Technologies Targeted for One or Two Networking Segments 4 Network Management Systems, Provisioning Operations, and Organizational Structures built around Segmented Networks 3 © 2006 ADVA Optical Networking. All rights reserved.

WDM Network Categories Access Metropolitan e Distanc <100 km <8 l 2. 5 G

WDM Network Categories Access Metropolitan e Distanc <100 km <8 l 2. 5 G $ Long Haul Regional y Capacit <400 km 20 l 10 G + 2. 5 G Cost <800 km 40 l 10 G (2. 5 G) $$$ $$ WDM systems are typically optimized for a given application 4 © 2006 ADVA Optical Networking. All rights reserved. >800 km +80 l 10 G +40 l 40 G $$$$$ Increased Network Cost

WDM Network Segmentation Management Systems and Organizational Structures Developed and Organized for Networking Segments

WDM Network Segmentation Management Systems and Organizational Structures Developed and Organized for Networking Segments Metro Regional Access 5 © 2006 ADVA Optical Networking. All rights reserved. Long Haul

To North Rings Real Networks Many Networks do not fall in any single category

To North Rings Real Networks Many Networks do not fall in any single category 3 2 2 4 9 5 5 7 6 8 4 Increased Network Cost 6 7 8 5 7 7 9 • New Jersey – Maryland Network • In-service 2003 • 88 Network Elements • Supports 40 l per fiber 5 • 10 G & 2. 5 G 6 8 6 7 12 10 The number of channels (10 G and 2. 5 G) on each optical span at initial turn-up is indicated by the number that is circled. 2 11 6 11 8 3 4 4 7 6 © 2006 ADVA Optical Networking. All rights reserved. To South Rings 4 4

Technology Application Segmentation Access Transmitters Metro 2. 5 G CWDM DML 2. 5 G

Technology Application Segmentation Access Transmitters Metro 2. 5 G CWDM DML 2. 5 G Regional EAML 2. 5 G 40 G MZ-EML 10 G EAML 10 G No Amplifiers Long Haul Raman EDFA Dual Stage EDFA Capacity 8 l 80 l 20 l 40 l Terminal Node Switching ROADM 7 Hybrid Raman/EDFA OADM ROADM Multi-Degree ROADM © 2006 ADVA Optical Networking. All rights reserved.

Modular WDM - Amplifiers Pre-amp (r)OADM Post-amp DCM Rx/Tx DCM Amplifier options • No

Modular WDM - Amplifiers Pre-amp (r)OADM Post-amp DCM Rx/Tx DCM Amplifier options • No amplifier • Single-pump EDFA • Dual-pump EDFA with mid-stage access • Variable Gain EDFA • Distributed Raman • Hybrid Raman+EDFA 8 © 2006 ADVA Optical Networking. All rights reserved.

Modular WDM - Transponders Pre-amp DCM (r)OADM Post-amp Rx/Tx DCM Transponder options • External

Modular WDM - Transponders Pre-amp DCM (r)OADM Post-amp Rx/Tx DCM Transponder options • External ITU-T l, any rate • CWDM 2. 5 G • DML DWDM 2. 5 G • EAML 2. 5 G • MZI 2. 5 G • EAML 2. 5 G FEC • EAML 10 G FEC • MZI 10 G FEC & duobinary 9 © 2006 ADVA Optical Networking. All rights reserved.

Modular WDM – (r)OADM Pre-amp DCM (r)OADM Post-amp Rx/Tx DCM OADM options • None

Modular WDM – (r)OADM Pre-amp DCM (r)OADM Post-amp Rx/Tx DCM OADM options • None (line-amp node) • 4 l and 8 l CWDM mux/demux • single-l DWDM filters • 20 l mux/demux • 40 l mux/demux • broadcast-and-select (2 -degree) ROADM • multi-degree ROADM 10 © 2006 ADVA Optical Networking. All rights reserved.

EDFA Power Ripple • 6 spans x 100 km SMF 9 EDFA + 4

EDFA Power Ripple • 6 spans x 100 km SMF 9 EDFA + 4 OADM • Low power ripple – no need for channel equalizer Input to first post-amp Output of last pre-amp < 5 d. B power ripple 11 © 2006 ADVA Optical Networking. All rights reserved.

ROADM for Power Equalization • Recirculating loop with 2 -deg. ROADM • <5 d.

ROADM for Power Equalization • Recirculating loop with 2 -deg. ROADM • <5 d. B power ripple after 16 ROADM • Open eye diagrams for 10 G EAML 1541 nm 16 loops 0 loops 12 1535 nm 16 loops © 2006 ADVA Optical Networking. All rights reserved.

Long-Haul All-Optical Transmission • Field trial 10 spans x 160 km SMF with no

Long-Haul All-Optical Transmission • Field trial 10 spans x 160 km SMF with no OEO regen • EAML, NRZ 10 G XPDR’s with hybrid Raman/EDFA • No per-wavelength power equalization along the link EFEC BER threshold Error Free with EFEC turned ON 13 © 2006 ADVA Optical Networking. All rights reserved.

Multi-haul WDM System Service providers Support multiple WDM platforms High Op. Ex. Use modular

Multi-haul WDM System Service providers Support multiple WDM platforms High Op. Ex. Use modular WDM system adapting to all networks requirements • Protocols • Data rates • Number of channels • Span distances • Total distances • Fiber types • Add/drop capacity and reconfigurability • Protection options 14 © 2006 ADVA Optical Networking. All rights reserved.

Multi-haul WDM Network 2. 5 G DML 10 G MZI R 2. 5 G

Multi-haul WDM Network 2. 5 G DML 10 G MZI R 2. 5 G EAML >1000 km 10 G EAML R R 40 G CWDM Multi-deg. ROADM 2 -deg. ROADM 1 -stage EDFA R 2 -stage EDFA R OADM 15 © 2006 ADVA Optical Networking. All rights reserved. Raman Hybrid Raman/EDFA

Network Cost Comparison Fixed OADM 16 2 -degree ROADM Multi-deg. ROADM © 2006 ADVA

Network Cost Comparison Fixed OADM 16 2 -degree ROADM Multi-deg. ROADM © 2006 ADVA Optical Networking. All rights reserved. Mixed (r)OADM

Tying Network Tools Together 2. 5 G DML 10 G MZI R 2. 5

Tying Network Tools Together 2. 5 G DML 10 G MZI R 2. 5 G EAML >1000 km 10 G EAML R 40 G • • • 17 R CWDM Provisioning Simplification Network utilization Multiple provisioning systems Automatic network inventory (discovery) Embedded service awareness © 2006 ADVA Optical Networking. All rights reserved.

Intelligent Control Plane Reduces Operational Expenditures and Metro Core Increases Service Delivery Metro Access

Intelligent Control Plane Reduces Operational Expenditures and Metro Core Increases Service Delivery Metro Access Metro Edge Customers Expedited Provisioning Point and click provisioning Network agility Enhanced revenue capability Integrated management 18 Network Efficiency Network Evolution Higher asset utilization Automated network inventory and reuse Efficient restoration Interoperability New types of services New architectural and operations models © 2006 ADVA Optical Networking. All rights reserved.

Summary – Multi-haul DWDM 4 Mix different XPDRs, Amplifiers, OADMs, etc on the same

Summary – Multi-haul DWDM 4 Mix different XPDRs, Amplifiers, OADMs, etc on the same optical path 4 Use the lowest-cost (but still reliable) alternative to meet network requirements 4 Cost and performance optimization performed with automated control plane technology 19 © 2006 ADVA Optical Networking. All rights reserved.

Thank You! rbowcutt@advaoptical. com info@advaoptical. com

Thank You! rbowcutt@advaoptical. com info@advaoptical. com

About the Author Roy Bowcutt is Senior Director of Product Management at ADVA Optical

About the Author Roy Bowcutt is Senior Director of Product Management at ADVA Optical Networking. of Product Management at Movaz Networks. Roy is experienced in the engineering and market development of telecommunications, cable video transmission, and data networking industries. Prior to ADVA, Roy was the Vice President of Product Management at Movaz Networks. Prior to joining Movaz, he worked in various engineering and management positions at Scientific Atlanta and IBM. Roy holds a BS in Electrical and Computer Engineering from Brigham Young University, a Masters in Electrical Engineering from the University of Minnesota, and an MBA from Emory University. 21 © 2006 ADVA Optical Networking. All rights reserved.

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