关于DWDM系统光信噪比降低导致误码的分析及研究  

Research on SNR Reduction Due to Optical Signal Bit Error in DWDM System

作　　者：闫斐[1] YAN Fei(Jiangsu Broadcasting Cable Information Network Co., Ltd., Jiangsu 210013, China })

机构地区：[1]江苏省广电有线信息网络股份有限公司,江苏210013

出　　处：《广播与电视技术》2017年第4期76-78,共3页Radio & TV Broadcast Engineering

摘　　要：光信噪比是DWDM通信系统日常维护的一个至关重要的参数,是反映DWDM通信系统运行质量最常用的技术指标之一,是光网络中预测系统误码率(BER)的关键性能参数。无论是在工程设计阶段、还是在验收测试阶段,特别是在运行维护阶段,均须关注光信噪比量值及其变化,及时判定其是否在规定标准范围之内。The optical signal-to-noise ratio （OSNR） is an important parameter in DWDM optical communication system. It is one of the most commonly used technical indexes of DWDM system performances, and it is also the key system parameter to predict bit error rate （BER） in an optical network. Therefore, OSNR value and its change shall be concerned in the design and test process, especially in the operation and maintenance process. Engineer should timely follow up with the OSNR value, and assess whether it is within a prescribed standard scope.

关 键 词：光信噪比 保护倒换 误码 波分系统 

分 类 号：TN929.11[电子电信—通信与信息系统]