Reduction of Four-Wave Mixing nonlinear effects in dense WDM optical long-haul networks

Abstract

In this paper, Chirped Fiber Bragg Grating (FBG) has been introduced to reduce the Four Wave Mixing (FWM) nonlinear effects in dense Wavelength Division Multiplexing (WDM) for optical long-haul network. The proposed method has been investigated based on different chromatic dispersion levels. The objective of this procedure is to minimize the FWM nonlinear effects in dense WDM optical network regardless of chromatic dispersion phenomenon. As known, the main problem about treating FWM and Chromatic dispersion in optical fibers is that they are inversely proportional. That is why a module able to fulfill these two main limitation simultaneously is of great interest. The WDM transmission system is simulated using the advanced tools of Optisystem 7.0. The simulation results have been examined and validated by analyzing the optical spectrum analyzer and the eye diagram for the eight optical channels.