一种级联喇曼光纤激光器数值模拟的新算法

为了优化设计光纤喇曼激光器的各项参量,采用喇曼激光器的基本理论模型模拟,提出了非线性最小二乘法和龙格-库塔法相结合的新算法,解决了模型中存在的两点边值问题,得到了级联喇曼光纤激光器的输出特性以及最佳光纤长度、激光阈值和斜率效率。结果表明,新算法非常有效,数值模拟的结果和相关实验相吻合。

A New Algorithm For Cascaded Raman Fiber Lasers

In order to optimize the design of fiber Raman laser, a numerical model is adopted for a cascaded Raman fiber laser, and a numerical algorithm is described including runge-kutta and least squares method that can be applied to cascaded Raman fiber lasers. The effects of output reflectivity, fiber length and pump power on the output characteristics of the cascaded Raman fiber laser are studied in detail, The results show that the algorithm makes the model robust and fast. and the simulation results are good qualitative agreement with experiments.