Performance Analysis of Backward Pumped Raman Amplifier based DWDM System at 40Gb/s

The rigorous requirement for enhanced data transmission and bidirectional communication has led to the usage of WDM system. In this paper, DWDM system in the region 191.1 THz to 193.45 THz at 0.4 nm channel spacing using Raman amplifier is being designed. The data rate used in our work is 40 Gb/s. The Raman Amplifier is used in the backward pump configuration and is having two pumps lasers. The total length span employed in the proposed system is 50 Km single mode fiber, 10 Km dispersion compensation fiber and 10 Km Raman amplifier. The feasibility of the proposed system is examined in terms of Q-factor which should be above 6 to ensure better transreception.