Journal of Computer Applications ›› 2015, Vol. 35 ›› Issue (1): 27-30.DOI: 10.11772/j.issn.1001-9081.2015.01.0027

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

XIONG Ying1,2, MAO Xuesong3, LIU Xing1, WANG Yaling1, JIN Gang1   

  1. 1. College of Computer Science and Technology, Wuhan University of Science and Technology, Wuhan Hubei 430065, China;
    2. Hubei Province Key Laboratory of Intelligent Information Processing and Real-time Industrial System (Wuhan University of Science and Technology), Wuhan Hubei 430065, China;
    3. School of Information Science and Engineering, Wuhan University of Science and Technology, Wuhan Hubei 430081, China
  • Received:2014-07-18 Revised:2014-09-19 Online:2015-01-01 Published:2015-01-26

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

熊莹1,2, 毛雪松3, 刘星1, 汪亚玲1, 金刚1   

  1. 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
  • 通讯作者: 熊莹
  • 作者简介:熊莹(1978-),女,湖北汉川人,实习研究员,硕士,主要研究方向:高速大容量网络;毛雪松(1975-),男,江苏盐城人,研究员,主要研究方向:车载多普勒激光雷达信号处理;刘星(1975-),女,湖北孝感人,高级工程师,主要研究方向:计算机网络、自然语义分析.

Abstract:

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 dB difference). Thus, the feasibility of the design is verified, which assures the reliable transmission between nodes.

Key words: Reconfigurable Optical Add/Drop Multiplexer (ROADM), Wavelength Division Multiplexing (WDM) network, bi-directional fiber ring, optical loss, transmission length

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 dB),验证了设计的可行性,保证了节点间的可靠传输.

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

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