Advanced time and wavelength division multiplexing for metropolitan area optical data communication networks

M. Watford; C. DeCusatis

doi:10.1117/12.628303

13 October 2005 Advanced time and wavelength division multiplexing for metropolitan area optical data communication networks

M. Watford, C. DeCusatis

Author Affiliations +

Proceedings Volume 5970, Photonic Applications in Devices and Communication Systems; 59701S (2005) https://doi.org/10.1117/12.628303
Event: Photonics North, 2005, Toronto, Canada

Abstract

With the advent of new regulations governing the protection and recovery of sensitive business data, including the Sarbanes-Oxley Act, there has been a renewed interest in business continuity and disaster recovery applications for metropolitan area networks. Specifically, there has been a need for more efficient bandwidth utilization and lower cost per channel to facilitate mirroring of multi-terabit data bases. These applications have further blurred the boundary between metropolitan and wide area networks, with synchronous disaster recovery applications running up to 100 km and asynchronous solutions extending to 300 km or more. In this paper, we discuss recent enhancements in the Nortel Optical Metro 5200 Dense Wavelength Division Multiplexing (DWDM) platform, including features recently qualified for data communication applications such as Metro Mirror, Global Mirror, and Geographically Distributed Parallel Sysplex (GDPS). Using a 10 Gigabit/second (Gbit/s) backbone, this solution transports significantly more Fibre Channel protocol traffic with up to five times greater hardware density in the same physical package. This is also among the first platforms to utilize forward error correction (FEC) on the aggregate signals to improve bit error rate (BER) performance beyond industry standards. When combined with encapsulation into wide area network protocols, the use of FEC can compensate for impairments in BER across a service provider infrastructure without impacting application level performance. Design and implementation of these features will be discussed, including results from experimental test beds which validate these solutions for a number of applications. Future extensions of this environment will also be considered, including ways to provide configurable bandwidth on demand, mitigate Fibre Channel buffer credit management issues, and support for other GDPS protocols.

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M. Watford and C. DeCusatis "Advanced time and wavelength division multiplexing for metropolitan area optical data communication networks", Proc. SPIE 5970, Photonic Applications in Devices and Communication Systems, 59701S (13 October 2005); https://doi.org/10.1117/12.628303

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KEYWORDS

Wavelength division multiplexing

Forward error correction

Data communications

Multiplexing

Dense wavelength division multiplexing

Optical networks

Green fluorescent protein

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