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基于双向抽运拉曼放大器的功率耦合方程 ,采用遗传算法和级链的全局收敛的Broyden方法 ,提出一种优化设计不同形式双向抽运宽带光纤拉曼放大器的自动配置算法。该算法的特点是计算速度快、收敛性好、适应面广。通过对单光纤的分布式、具有不同增益要求的分立式以及不同周期的色散管理结构的分布式双向抽运拉曼放大器的设计表明 :在 10THz的增益带宽内 ,放大器的增益平坦度均优于± 0 .6dB ,表明了该算法的可行性。此方法为采用双向抽运技术的拉曼放大器及其相应的全拉曼光纤传输系统的设计提供了一个公共平台
Based on the power coupling equation of bi-directional pumping Raman amplifier, an auto-configuration algorithm is proposed to optimize the design of different modes of bi-directional pumping wideband fiber Raman amplifier by using the genetic algorithm and the Broyden method of global convergence of the chain. The algorithm is characterized by fast calculation, good convergence and wide adaptability. The design of a distributed bi-directional pumping Raman amplifier with distributed single-fiber, discrete and different dispersion management structures with different gain requirements shows that the gain flatness of the amplifier is good in the gain bandwidth of 10 THz At ± 0 .6dB, shows the feasibility of the algorithm. This method provides a common platform for the design of a Raman amplifier using bi-directional pumping techniques and its corresponding all-Raman fiber optic transmission system