Abstract
An extensive investigation has been carried out, by computer simulation, to evaluate the impact of self phase modulation SPM on residual dispersion for a wavelength-division multiplexed WDM system at a bit rate of 10 Gbit/s. Degradation of the eye opening of the trans- mitted pulses at the output of the transmission fiber due to interplay of the SPM and the group-velocity dispersion effects is investigated for post- and bi-end compensation configurations, including residual disper- sion. Hence the eye-opening penalty and the threshold power limit at 3-dB eye-opening penalty are determined for both the configurations. It is found that the bi-end compensation configuration offers the best per- formance in respect of the SPM effect and that for a WDM system posi- tive residual dispersion should be used. © 2005 Society of Photo-Optical Instru-
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