光信噪比在有线网络10G DWDM系统中的优化及研究  

Research on OSNR Optimization of Jiangsu 10G DWDM System

作　　者：韩旭[1] 闫斐[1] 周鑫磊[1] 

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8期79-82,共4页Radio & TV Broadcast Engineering

摘　　要：在DWDM系统中,产生误码通常和光功率预算、信噪比和色散因素有关系。网络工程期间就对色散进行了预算和补偿,网络运行的过程中一般很少出现色散问题,而光功率预算问题导致信号劣化比较好判断,通过检查单板的输入光功率是否在合适的范围内基本上都能很快的判断处理,如果遇到单板的输入光功率合适,且判断单板正常的的情况下还是有误码,首先应考虑信噪比是否合适。In DWDM system, BER is usually related to factors including optical power budget, optical signal to noise ratio （OSNR） and dispersion. Dispersion is usually compensated during network construction. Dispersion rarely occurs when network is operating. Signal degradation caused by optical power budget problems is easy to be determined through checking whether the input optical power is in an appropriate range. After that, OSNR need to be considered if bit error still exists.

关 键 词：光信噪比 波分系统 误码 优化 

分 类 号：TN929.11[电子电信—通信与信息系统]