摘要
对用波分复用技术扩容本地光纤网进行了较详细的经济成本分析 ,得出如下结论 :环路节点距离较短时 ,采用 WDM与直接增加光缆相比不节省投资 ;环路节点距离一定 ,WDM的光通路数多 ,节省成本 ;若 WDM设备价格下降速度不能跟上光缆价格下降速度 ,则难以节省成本。
The cost of using WDM to expand local area optical network is analyzed. In the case of shorter distances between the loop nodes,the cost of network expansion through WDM isn't be less than that of expansion through installation of new cables. But with fixed distances between nodes,the cost will decrease with the increase of number of optical paths.In addition, it will be difficult to save cost if the price of WDM equipments can't decrease simultaneously with that of optical cables.
出处
《光通信研究》
北大核心
2000年第2期4-7,17,共5页
Study on Optical Communications
