基于波长选择型可重构光分插复用设备的IP网络的传输长度设计  

Transmission length design of IP network with wavelength-selectable reconfigurable optical add / drop multiplexer

作　　者：熊莹[1,2] 毛雪松[3] 刘星[1] 汪亚玲[1] 金刚[1] 

机构地区：[1]武汉科技大学计算机科学与技术学院,武汉430065 [2]智能信息处理与实时工业系统湖北省重点实验室(武汉科技大学),武汉430065 [3]武汉科技大学信息科学与工程学院,武汉430081

出　　处：《计算机应用》2015年第1期27-30,共4页journal of Computer Applications

摘　　要：针对高速大容量波分复用(WDM)网络在多点故障、变更的情况下,运行效率低、维护成本高的问题,提出使用可重构光分插复用设备(ROADM)元件来构建灵活网络。首先,给出了所用的5节点网络配置模型;然后,研究了在动态网络条件下使用ROADM的光网络损耗与传输长度间关系,提出网络传输长度设计流程;其次,基于ROADM搭建一个5节点双向光纤环路实验网络,测量了光损失特性;最后,分析实验结果,得出损耗计算值与光纤实装损耗测量值近似相等(相差0.8 d B),验证了设计的可行性,保证了节点间的可靠传输。For dealing with the problem of low efficiency and high maintenance cost when multi-point breakdown or change occurs in Wavelength Division Multiplexing（ WDM） network with high speed and large capacity, the component of Reconfigurable Optical Add / Drop Multiplexer（ ROADM） was used to construct a flexible network. Firstly, the 5-node network configuration model was provided. Then, the relation between loss and transmission length was investigated when optical network was composed of ROADM under dynamic conditions. The design flow of network transmission length was proposed.Next, a 5-node bi-directional fiber ring experiment network was constructed, and the optical loss characteristics were measured. Finally, based on the analysis of experiment data, it shows that the computed optical loss value and the measured loss value are approximately equal（ 0. 8 d B difference）. Thus, the feasibility of the design is verified, which assures the reliable transmission between nodes.

关 键 词：可重构光分插复用设备 波分复用网络 双向光纤环路 光损失 传输长度 

分 类 号：TP393.1[自动化与计算机技术—计算机应用技术]