光传输网中DWDM技术在广电网络中的应用研究

Research on application of DWDM in optical transmission network

采用光传输的DWDM技术扩展运营商的网络带宽,不仅极大地利用了有限而且昂贵的光缆资源,而且增加了光纤带宽的利用率,还降低了整个系统的维护和建设成本。首先对DWDM技术进行了介绍;然后通过对达州广电城域网的业务网络带宽需求量的分析,再结合实际情况量身定制了达州广电网络的建设方案;还对达州广电整个OTN网络中DWDM设备的实际应用情况进行了分析,从网络规划、设备确定、设备安装和调试、承载业务等方面详细阐述了DWDM设备在承载网络中的实际应用。

Operator＇s network bandwidth is expanded by DWDM technology in light transmission, not only greatly using the limited and expensive cable resources, and increase the utilization rate of the bandwidth of optical fiber, but also reduce the maintenance and construction cost of the whole system. The DWDM equipment in the network in the practical application of bearing is described in detail. Firstly, the DWDM technology is detailed introduction; and then through analysis of Dazhou CATV business network bandwidth demand, combined with the actual situation of tailored as the construction scheme of the state radio and television net- works is made. Application of DWDM equipment in Dazhou broadcasting OTN network is analyzed from the network planning, the facility determines, equipment installation and commissioning, carrying business and so on.