分布式拉曼光纤放大器动态增益控制研究  

Dynamic Gain Control for Distributed Raman Fiber Amplifiers

作　　者：洪泽华[1] 高致慧[1] 虞爱华[1] 王洪艳[1] 陈升[1] 

机构地区：[1]深圳大学电子科学与技术学院,广东深圳518060

出　　处：《光学与光电技术》2008年第5期33-37,共5页Optics & Optoelectronic Technology

摘　　要：介绍了动态增益控制的必要性,对动态拉曼传输方程进行了简化,并将其以矩阵形式表示,从而减少了方程的数量,提高了计算速度。由拉曼传输耦合方程推出一种适用于分布式拉曼放大器实时控制的自动控制算法。考虑工程需要,该算法忽略了噪声功率、泵浦间的受激拉曼效应,以及信号和泵浦间受激拉曼效应对泵浦功率的损耗。结果表明该算法能够达到快速抑制输入信号功率突变引起的输出功率/增益波动的目的。The essentiality of dynamic gain control is introduced. The Raman propagation equations are simplified and written with the format of matrix. It can increase the speed of calculating the equations with this format because of the decrease of equations. Lastly, the real-time auto-control algorithm for DRA is gotten from Raman coupling equations. During solving the propagation equations, the noise power, stimulated Raman scattering （SRS） of pump-pump and the pump power attenu- ation caused by SRS of signal-pump are ignored. From the result of simulation experiment, it can be seen that this control method can suppress fast and exactly the transient of gain or power caused by the change of input signal power.

关 键 词：光放大器 分布式拉曼光纤放大器 瞬态效应 动态增益控制 

分 类 号：TN253[电子电信—物理电子学]