Borsali, Ahmed RiadAbri Badaoui , HadjiraAichi, MohamedAichi, Walid2013-02-052013-02-052012-05https://dspace.univ-tlemcen.dz/handle/112/1396In this paper, we investigate the quality of the transmission of each channel for a Wavelength Division Multiplexed (WDM) system with a 640 GB/s data rate (16 x 40 GB/s) with RZ modulation for different channel spacing.enWDMRZdispersion compensating Fiberbit error rateEffect of channel wavelength spacing for WDM system on the quality of the transmisionArticle