一种测量光纤喇曼放大器增益的方法  

A gain technique for measuring Raman fiber amplifiers

作　　者：杨鹏[1] 梁小红[1] 

机构地区：[1]中国电子科技集团公司第四十六研究所,天津300220

出　　处：《光通信技术》2010年第9期39-40,共2页Optical Communication Technology

摘　　要：根据喇曼放大器的增益和噪声的定义,提出一种独特的低成本的测量噪声和增益的方法。该方法是用一个梳状滤波器对宽带ASE信号进行调制,并在输入和输出信号的凹陷的较陡处进行取点,从而得出某个局部的输入和输出信号的线性关系,进一步计算出光纤喇曼放大器的增益和噪声系数。对该方法进行了数值模拟,以便进一步阐明测量原理。Basing on the conventional definitions of gain and optical noise figure （NF） of an RAF, we report an unique low-cost technique for measuring gain and noise figure （NF） in raman fiber amplifiers. We modulate a broad-band amplified spontaneous emission source with a comb filter, and extract the slope and intercept of output power spectral density versus input power spectral density at filter edges. Then we can calculate the gain and optical NF of an RAF .We also simulate this technique in numerical value, in order to illustrate the theory of this technique further.

关 键 词：ASE 法布里-珀罗 梳状滤波 增益 光纤喇曼放大器 

分 类 号：TN253[电子电信—物理电子学]