Optical-Domain Performance Monitoring for Next Generation Optical Networks
Project Award Date: 05-01-2004
ITTC researchers are making optical performance monitoring flexible and compatible to most of the existing and predicted future optical network architecture, while providing sufficient information for network maintenance and quality control.
Compared to electrical domain performance monitoring, signal processing in optical domain is data-rate transparent, flexible to various signal modulation format, independent of transmission equipment vendors, and is capable of operating in hybrid optical networks across the boundary of different service operators.
ITTC researchers are developing a multi-functional, ultra-high-resolution optical performance monitor based on coherent detection. Although coherent technology has not been popular in high-speed optical transmission systems, it remains an excellent tool for optical domain signal processing. Coherent detection preserves optical phase information. Thanks to the rapid advancement in tunable semiconductor lasers, coherent detection is becoming more and more practical and realistic.
Primary Sponsor(s): Sprint, Nortel Networks