光波分复用在农村广播电视共缆传输中的应用

Application of Optical Wavelength Division Multiplexing in Rural Broadcast Television Cable Network

浙江省海宁市广电网络已发展到光缆到镇、到村、到组的 3级光缆传输阶段 ,在实施广播电视共缆传输中尝试了 3种方案 ,第一种方案为基本配置方案 ,适用于现有电视网络 ,第二、第三种方案为网络升级改造方案。第三种方案关键在于光波分复用 ,技术含量要求较高 ,为广播电视信号的传输带来诸多优点。

The broadcast television cable network in Haining City of Zhejiang Province have formed three stages of optical cable transmitting that spread to town, to village and to group. In implementing altogether cable three sets of schemes in transmitting broadcast television are used, the first for disposing scheme basically, is suitable for the existing TV; the second and third are upgrade scheme of transforming for the network. The third keys lie in the optical wavelength division multiplexing(WDM). It's technological content is expected relatively much, and brings a great deal of merits for broadcasting the transmission of TV signal.