DWDM系统中级联EDFA光信噪比计算  

The OSNR calculating of DWDM system using cascade EDFAs

作　　者：杨宁[1] 杨铸[1] 漆启年[1] 曾祥雨[1] 

机构地区：[1]烽火通信科技股份有限公司,湖北武汉430074

出　　处：《通信学报》2003年第1期75-82,共8页Journal on Communications

摘　　要：本文推导出级联EDFA密集波分复用系统光信噪比表达式,并由EDFA噪声指数的定义推导出级联EDFA系统等效噪声指数的表达式,分析了级联EDFA系统输出端OSNRout与等效噪声指数之间的关系,并通过实验对之加以了验证。In this paper , the expression of optical signal-to-noise(OSNR) and effective noise figure of cascade EDFAs in DWDM systems are derived.They also introduce the expression of noise figure for a system consisting of a chain of EDFAs according the definition of individual EDFA.The relationship between the two expressions has been analyzed in this paper.

关 键 词：DWDM 级联EDFA 密集波分复用 光信噪比 噪声指数 光纤放大器 

分 类 号：TN929.1[电子电信—通信与信息系统]