1550nm波段光纤CATV传输系统的噪声分析及组网  

Noise Analysis and Network Design in Optical CATV Transmission System at Wavelength of 1550nm

作　　者：诸波[1] 陆毓胜[1] 王平[2] 张兴[2] 田锦[2] 

机构地区：[1]南京邮电学院光信息技术系,江苏南京210003 [2]南京普天通信股份有限公司,江苏南京210006

出　　处：《江苏通信》2001年第5期1-5,共5页Jiangsu Communication

基　　金：江苏省科学技术委员会"九五"攻关项目(BE96 0 19)

摘　　要：对 15 0 0nm波段光CATV噪声的产生的机制进行了讨论。重点分析了EDFA产生的噪声特性 ,对系统载噪比(CNR)与EDFA输入功率之间的关系和系统CNR与调制指数的关系进行了研究 ,得出了提高CNR的方案 ;对光CATV组网方案进行了讨论 。In this paper discussion is devoted to mechanism to produce noise in optical CATV system at wavelength of 1550nm The performance of noise caused by EDFA is mainly investigated The relationship between CNR and input power of EDFA,and that of between CNR and OMI are studied The method to get higher CNR is obtained Design scheme of HFC network is also discussed The optical CATV network designed by us is present

关 键 词：光缆电视 掺铒光纤放大器 相对强度噪声 

分 类 号：TN943.6[电子电信—信号与信息处理]