Title :
System degradation due to multipath coherent crosstalk in WDM network nodes
Author :
Yu, Charles X. ; Wang, Weyl-kuo ; Brorson, Stuart D.
Author_Institution :
Tellabs Opt. Networking Group, Hawthorne, NY, USA
fDate :
8/1/1998 12:00:00 AM
Abstract :
This paper shows-both experimentally and through Monte Carlo simulation-that in wavelength division multiplexing (WDM) lightwave networks coherent crosstalk in network nodes causes multipath fading on a seconds to minutes time scale. The result of such fading is that the bit error rate (BER) fluctuates significantly as a function of time. We find that for eight crosstalk paths a signal-to-crosstalk ratio (SXR) greater than 40 dB is required to make this fading negligible. The simulation also shows that for 32 crosstalk paths an SXR as much as 55 dB is required to combat the crosstalk penalty
Keywords :
Monte Carlo methods; fading; optical crosstalk; optical fibre networks; wavelength division multiplexing; Monte Carlo simulation; WDM lightwave networks; WDM network nodes; bit error rate; coherent crosstalk; crosstalk paths; crosstalk penalty; multipath coherent crosstalk; multipath fading; signal-to-crosstalk ratio; system degradation; time scale; wavelength division multiplexing; Bit error rate; Crosstalk; Degradation; Fading; Intelligent networks; Interference; Optical fiber polarization; Optical filters; WDM networks; Wavelength division multiplexing;
Journal_Title :
Lightwave Technology, Journal of
