基于物理损伤联合影响的光信号脉宽模型研究  

Research on pulse width model of optical signal based on effects of combined physical impairments

作　　者：赵继军[1,2] 郭昆[1,2] 李志华[1,2] 王丽荣[3] 赵文玉[4] 

机构地区：[1]河北工程大学信息与电气工程学院,河北邯郸056038 [2]邯郸市光纤通信与宽带接入技术重点实验室,河北邯郸056038 [3]邯郸职业技术学院实验实训中心,河北邯郸056001 [4]工业和信息化部电信传输研究所,北京100045

出　　处：《通信学报》2012年第11期8-16,共9页Journal on Communications

基　　金：国家自然科学基金资助项目(61171076);河北省自然科学基金资助项目(F2010001045);河北省教育厅科学研究计划资助项目(2008110);河北省科学技术研究与发展计划资助项目(10213545)~~

摘　　要：针对物理损伤的精确评估问题,分析了自相位调制(SPM)对群速度色散(GVD)的抑制或加强作用。基于它们共同对信号产生的影响,提出了考虑物理损伤联合影响的光信号脉宽模型,并将此模型应用到基于物理损伤感知的路由波长分配(IA-RWA)算法仿真中。仿真结果表明,综合考虑物理损伤的联合影响有利于准确规避损伤严重的路径,降低阻塞率。For the accurate assessment of physical impairments, the suppression or enhancement effect of self phase modulation （SPM） on group velocity dispersion （GVD） were analyzed. Then, a pulse width model based on their combined effects on signal distortion was proposed. This model considered the effects of combined physical impairments, and it was applied in the simulation of the impairment-aware routing and wavelength assignment （IA-RWA） algorithm. The results indicate that comprehensive consideration of the effects caused by combined physical impairments is conductive to accurately avoid more serious physical impairments during routing and reduces blocking rate.

关 键 词：光网络 损伤感知 路由波长分配 群速度色散 自相位调制 

分 类 号：TN929.11[电子电信—通信与信息系统]