Novel fast algorithm for backward-pumped Raman amplifier

Abstract

In this paper, a novel semi-analytical algorithm for calculating backward-pumped Raman amplifier is proposed. The algorithm does not need iteration and can greatly save the computational time. Simulation results for Raman amplifiers with 25 km and 50 km fibers show that the accuracy of the method is quite satisfying in comparison with the shooting algorithm and the deviation is within 0.02 dB.