摘要
密集波分复用(DWDM)的发展对放大器的要求越来越高,多波长光纤喇曼放大器(MW FRA)解决了放大带宽的问题,但由于多泵浦喇曼放大过程的复杂性,很难控制增益谱线的平坦度。文章分析了MW FRA的泵浦和信号功率耦合方程,推导出增益表达式。比较了两种优化算法的优劣,并使用遗传算法对泵浦进行了优化,获得了较平坦的增益谱。
The development of DWDM presents ever higher requirements for amplifier. The emergence of MW-FRA broke the limit of bandwidth of amplifier, while it put forward a new problem of gain flatness control. This paper analyzed the power coupling equation of pump and signal in MW-FRA, derived its gain formula, then optimized the pump power using inheritance arithmetic, and achieved an improvement on flatness of gain spectrum.
出处
《光通信研究》
北大核心
2005年第2期53-55,共3页
Study on Optical Communications
关键词
多波长光纤喇曼放大器
功率优化
耦合方程
遗传算法
multiple wavelengths fiber Raman amplifier
power optimization
coupling equation
inheritance arithmetic
