Investigation of Crosstalk Effects due to Optical Fiber Nonlinearities in WDM CATV Networks

Crosstalk due to optical flber nonlinearities is an important parameter to be con- sidered to determine the performance of WDM based CATV optical networks. In this paper we present the results of our investigation on the crosstalk due to stimulated Raman scattering and cross phase modulation. Due to the limited bandwidth availability for the upstream data communication in the CATV network, WDM technology is widely employed. We considered difierent WDM conflgurations of CATV network and investigated, both numerically and experi- mentally, the efiect of these nonlinear efiects with respect to optical power, wavelength spacing, transmission distance and carrier frequency.