双向多波长泵浦喇曼光纤放大器的优化算法  

Study of Optimal Algorithm of Multiple Wavelength Bi-direction Pumped Raman Amplifier

作　　者：熊超超[1] 张晓霞[1] 毛谨[1] 胡书[1] 

机构地区：[1]电子科技大学光电信息学院,四川成都610054

出　　处：《红外》2008年第4期24-27,共4页Infrared

摘　　要：在变步长的龙格库塔法的基础上,提出利用打靶法,通过先猜测再修正的逐渐逼近的方法来确定计算初始值,进而求解双向泵浦喇曼放大器的功率耦合方程。并利用此算法对三泵浦波长的喇曼放大器进行优化设计,选择泵浦波长分别为1427nm、1445nm和1466nm时进行数值模拟,得到了1dB带宽35nm左右的较好的增益平坦度。On the basis of the variable step Runge-Kutta method, a shooting algorithm is proposed. In this algorithm, the initial value is determined by means of gradual approximation, i.e. first guessing and second correction, and then the coupled power equation of a bi-direction pumped fiber Raman amplifier is solved. The algorithm is used to implement the optimal design of a three wavelength pumped Raman amplifier and the numerical simulation is done at the selected wavelengths of 1427nm, 1445nm and 1466nm respectively. A good gain flatness of 35nm is achieved for a 1dB bandwidth.

关 键 词：光纤放大器 喇曼放大器 优化 打靶法 

分 类 号：TN722[电子电信—电路与系统]