DWDM系统传输质量的快速评定测量  

Fast Evaluation and Measurement to the Transmission Quality of DWDM System

作　　者：彭明鉴 彭承柱[2] 

机构地区：[1]朗讯科技(中国)有限公司 [2]天津大学光纤技术研究所

出　　处：《现代电信科技》2005年第8期51-54,共4页Modern Science & Technology of Telecommunications

摘　　要：DWDM系统的传输质量受到线性和非线性两类效应引起的损害影响,导致光信号噪声比下降,误码率增大。由于误码率与Q因子相关,而Q因子或误码率又可由眼图的垂直张开度观测,故通过确定Q因子的伪误码率的方法就能快速评定测量DWDM系统的传输质量。The transmission quality of DWDM system is affected by the damages from linear and nonlinear effects, so the ratio of optical signal to noise is reduced and the bit error rate is increased. Bit error rate and Q factor are correlated, and they can be observed from the vertical opening degree of eye graphics, therefore the fast evaluation and measurement to the transmission quality of DWDM system can be realized through confirming the pseudo-error rate of Q factor.

关 键 词：DWDM 误码率 Q因子 光信噪比 眼图 DWDM系统 传输质量 测量 信号噪声比 非线性 

分 类 号：TN929.11[电子电信—通信与信息系统] TN943.6[电子电信—信息与通信工程]