多抽运宽带喇曼放大器模拟算法的研究  

A study of the simulation algorithm for multi-pumped broadband Raman amplifier

作　　者：武斌[1] 李康[1] 孔繁敏[1] 王岩[1] 李谦[1] 

机构地区：[1]山东大学信息科学与工程学院,济南250100

出　　处：《激光技术》2005年第4期410-413,共4页Laser Technology

摘　　要：基于龙格-库塔-芬尔格(Runge-Kutta-Fehlberg)方法,提出了一种求解多抽运宽带喇曼放大器耦合方程的自适应步长算法。该算法根据每步计算中局部截断误差和精度的要求,合理调整步长大小。仿真结果表明,与其它算法相比,自适应步长算法能有效地提高计算精度和效率,适合于光纤喇曼放大器的模拟计算。An adaptive step-size method for the coupled equations of multi-pumped broadband Raman amplifiers was proposed based on Runge-Kutta-Fehlberg methods，This algorithm adjusts the step-size appropriately according to the presupposed precision and the local truncation error of each step，Simulation results indicate that our adaptive step-size method improves the accuracy and the simulating speed efficiently compared with other traditional algorithms and suits the numerical simulation for fiber Raman amplifier。

关 键 词：多抽运光纤喇曼放大器 受激喇曼散射 喇曼增益 局部截断误差 

分 类 号：TN253[电子电信—物理电子学] O437.3[机械工程—光学工程]