Performance Analysis of Dispersion Compensation in Long Haul Optical Fiber with DCF

Abstract

In this paper, We investigate post, pre and symmetrical/mix dispersion compensation methods for 40 Gb/s non-return to zero (NRZ) link using standard and dispersion compensated fiber through FBG compensator to optimize high data rate optical transmission. The influence of dispersion of FBG compensator and increases in the power of CW laser has been studied to evaluate the performance of optical communication systems. The simulation model of the WDM based on the Optisystem 12.0 is presented according to the above principle. The simulation results are validated by analyzing the Q-factor and bit error rate (BER) in the numerical simulator. It is found that post compensation performance is good and the input fiber power is taken as 5 to 10dB, the corresponding BER performance is better.