Simulation and analysis of SRS in WDM communication systems

In order to improve the performance of wavelength division multiplexing (WDM) communication sys- tems, the influence of stimulated Raman scattering (SRS) is researched . The forming of stimulated Raman scatter- ing and the effect on the stimulated Raman scattering by the spacing and launch power of optical channels are ana- lyzed based on the nonlinear optics theory. Studies showthat each of the following cases, such as increasing of the threshold value, selecting the appropriate channel spacing and reducing the incident power, can reduce the impact of SRS. In addition, increasing the effective area of fiber also helps to reduce the impactof SRS on the system. The credibility of study results is verified by the simulation experiments.