Performance Comparison of Pre - , Post - and Symmetrical - Dispersion Compensation Techniques using DCF on 40 Gbps WDM System

494 ISSN: 2278 – 909X All Rights Reserved © 2015 IJARECE  Abstract— Various factors like chromatic dispersion, polarization mode dispersion, non-linear effects, second order and third order dispersion impose limit on the performance of all the optical networks. In this paper, WDM optical system at 40 Gb/s has been investigated for the three dispersion compensation techniques (pre, post and symmetrical) using dispersion compensating fibers (DCF). The performance has been compared on the basic of different parameters at the receiving end. Optisystem 7.0 is used for designing and simulation of the proposed system. It is observed that the symmetrical-compensation scheme performs better than pre-, post-compensation schemes for 8 x 40 Gb/s WDM system.