Title :
Demonstration of output-port contention resolution in a WDM switching node based on all-optical wavelength shifting and subcarrier-multiplexed routing-control headers
Author :
Shieh, W. ; Park, E. ; Willner, A.E.
Author_Institution :
Dept. of Electr. Eng., Univ. of Southern California, Los Angeles, CA, USA
fDate :
7/1/1997 12:00:00 AM
Abstract :
We demonstrate near-error-free output-port contention resolution in a WDM switching node based on all optical wavelength shifting. Contention between incoming 1-Gb/s data packets is resolved in real-time by comparing subcarrier-multiplexed control headers on 2 input ports and then all-optically wavelength-shifting one input signal to a free wavelength if contention occurs. Additionally, the 50-Mb/s subcarrier header itself is replaced and updated with new routing information.
Keywords :
optical communication equipment; optical fibre networks; subcarrier multiplexing; telecommunication network routing; wavelength division multiplexing; 1 Gbit/s; 50 Gbit/s; Gb/s data packets; Mb/s subcarrier header; WDM switching node; all optical wavelength shifting; all-optical wavelength shifting; all-optically wavelength-shifting; contention; free wavelength; input ports; input signal; near-error-free output-port contention resolution; output-port contention resolution; real-time; routing information; subcarrier-multiplexed control headers; Baseband; High speed optical techniques; Optical buffering; Optical fiber networks; Semiconductor optical amplifiers; Signal resolution; Throughput; WDM networks; Wavelength division multiplexing; Wavelength routing;
Journal_Title :
Photonics Technology Letters, IEEE
