拉曼放大器的交迭因子模型及其性能特性仿真

通过引人交迭因子的概念，提出了光纤拉曼放大器(FRA)仿真的改进模型。采用此模型进行仿真，可以在保证精度的基础上，显著缩短仿真时间。在此模型的基础上，仿真了色散和非线性效应对超高斯脉冲抽运拉曼放大器性能的影响。结果表明，色散对其影响较大，而非线性系数对其影响相对较小。

Model of Overlapping Factors of Raman Amplifiers and Simulation of Performance Characteristics

With the introduction of overlapping factor, a new simulation model for fiber Raman amplifiers (FRA) is proposed. Using this new model in FRA simulation leads to obvious reduction of iteraction time with satisfactory accuracy. The effect of dispersion and nonlinearity on super Gaussian pulse pumped Raman amplifiers has been studied by solving the new model. The simulating results show that dispersion has great impact on the performance of fiber Raman amplifiers, while nonlinearity make little influence on it.