Title :
Reduction in coherent cross talk in WDM add/drop multiplexing nodes by path-length misalignment
Author :
Khosravani, R. ; Hayee, M.L. ; Hoanca, B. ; Willner, A.E.
Author_Institution :
Dept. of Electr. Eng. Syst., Univ. of Southern California, Los Angeles, CA, USA
Abstract :
Summary form only given. We propose and analyze a method of reducing the effects of coherent cross talk in a WDM add/drop multiplexer by purposely introducing a delay between different cross-talk paths. For a 16-channel WDM system, this method reduces the requirement for the multiplexer/demultiplexer cross talk by /spl sim/10 dB for return to zero and /spl sim/5 dB for nonreturn to zero transmission.
Keywords :
multiplexing equipment; optical communication equipment; optical crosstalk; optical delay lines; optical fibre networks; wavelength division multiplexing; 16-channel WDM system; WDM add/drop multiplexing nodes; cascaded stages; coherent crosstalk reduction; delay between paths; multiplexer/demultiplexer crosstalk; nonreturn to zero transmission; path-length misalignment; power penalty; return to zero transmission; Add-drop multiplexers; Bit error rate; Delay effects; Optical crosstalk; Optical interferometry; Optical polarization; Optical signal processing; Ultraviolet sources; WDM networks; Wavelength division multiplexing;
Conference_Titel :
Lasers and Electro-Optics, 1998. CLEO 98. Technical Digest. Summaries of papers presented at the Conference on
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
1-55752-339-0
DOI :
10.1109/CLEO.1998.675816
