Abstract
The developments made over the years in WDM (Wavelength Division Multiplexing), on one side, produced compensation of increasing traffic and channel capacity, but on other side, pertinently caused WDM systems to undergo different linear and non-linear effects thereby degrading the performance as such. To overcome linear effects is relatively convenient and manageable, however, the non-linear effects including four wave mixing (FWM) is not only difficult to eliminate but also highly incompatible from system point of view. In this research, valid parameters which lead to generation and enhancement of FWM, are discussed, simulated and based on exhaustive sets of obtained results, a detailed analysis has been carried out to reduce the FWM. The simulated results obtained by exploiting nine important parameters using Optisys simulator, divulge very incisive information for the removal of nonlinear effects in WDM. The authors are reasonably confident to extend their results as a contribution in the subject area.