Title :
Chromatic dispersion monitoring technique using sideband optical filtering and clock phase-shift detection
Author :
Yu, Qian ; Pan, Zhongqi ; Yan, Lian-Shan ; Willner, Alan Eli
Author_Institution :
Dept. of Electr. Eng. Syst., Univ. of Southern California, Los Angeles, CA, USA
fDate :
12/1/2002 12:00:00 AM
Abstract :
We propose and demonstrate a novel technique for 40- and 10-Gb/s chromatic dispersion monitoring that uses an optical filter to select the upper and lower vestigial-sideband (VSB) signals in the transmitted optical data and determine the relative clock phase shift caused by dispersion. Without modification of transmitters, this technique provides low cost chromatic dispersion monitoring for WDM systems, <3 ps/nm dispersion resolution for 40-Gb/s data, and greatly reduced sensitivity to the influence of polarization mode dispersion.
Keywords :
optical fibre communication; optical fibre dispersion; optical fibre polarisation; optical fibre testing; optical filters; synchronisation; wavelength division multiplexing; 10 Gbit/s; 40 Gbit/s; VSB; WDM systems; chromatic dispersion monitoring technique; clock phase-shift detection; dispersion resolution; lower vestigial-sideband signals; polarization mode dispersion; relative clock phase shift; sideband optical filtering; transmitted optical data; transmitters; upper vestigial-sideband signals; Chromatic dispersion; Clocks; Costs; Filtering; Monitoring; Optical filters; Optical sensors; Optical transmitters; Phase detection; Polarization mode dispersion;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2002.806783
