Investigation of the Different Compensation Methods for Single Optical Channel

Abstract

In the optical channel each of pulse broadening and distortion produced by dispersion, lead to degrading the fiber performance. To deal with the dispersion, several techniques have developed and improved. To mitigate the pulse broadening in the optical channel, Fiber Bragg Gratings (FBGs) and Dispersion Compensation Fiber (DCF) have utilized separately. Single channel transmission system with 10 Gbits/sec data rate optical system is designed and simulated by using optisystem software package. All the designs are compared in forms of Quality factor (Q-factor). The optimum parameters setting of FBG are achieved by varying the chirp function and apodization function of the FBGs. Among the methods presented in this research, the q-factor of DCF is better than using FBGs for 100 km length. The Q-factor by using DCF is 10.08 and by using FBG is 4.83 but DCF needs huge negative dispersion coefficient and it has high insertion loss with increasing the nonlinear effects and costly, so that, FBG is a promising approach in compensating the dispersion.