Suppression of FWM in WDM optical communication systems using channel polarization and its comparative study using fuzzy model

Abstract

Four-Wave-Mixing (FWM) is one of the major degrading factors in Wavelength Division Multiplexing (WDM) optical fiber communication systems and networks along with other fiber non-hearties. As a result it is important to investigate the impact of FWM on the design and performance of WDM optical communication systems. In this paper simulation results are presented to analyze the FWM products those are maximized when polarization are aligned and are reduced when polarization components are orthogonal. A fuzzy model is developed to obtain the FWM power by varying the polarization and channel spacing. Further, the comparative study has been reported for both the cases. It is observed that the FWM effect reduces in 0.05 THz spaced channel compared to 0.03 THz and 0.04 THz.