基于物理损伤联合影响的光信号脉宽模型研究

doi:10.3969/j.issn.1000-436x.2012.11.002

通信学报 ›› 2012, Vol. 33 ›› Issue (11): 8-16.doi: 10.3969/j.issn.1000-436x.2012.11.002

基于物理损伤联合影响的光信号脉宽模型研究

赵继军^1,²,郭昆^1,²,李志华^1,²,王丽荣³,赵文玉⁴

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

出版日期:2012-11-25 发布日期:2017-07-25
基金资助:
国家自然科学基金资助项目;河北省自然科学基金资助项目;河北省教育厅科学研究计划资助项目;河北省科学技术研究与发展计划资助项目

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

Ji-jun ZHAO^1,²,Kun GUO^1,²,Zhi-hua LI^1,²,Li-rong WANG³,Wen-yu ZHAO⁴

¹ School of Information and Electrical Engineering,Hebei University of Engineering,Handan 056038,China
² Handan Key Laboratory of Optical Fiber Communication ＆ Broadband Access Technologies,Handan 056038,China
³ Experimental Tranining Center,Handan Polytechnic College,Handan 056001,China
⁴ Research Institute of Telecommunication ＆ Transmiss n,MIIT,Beijing 100045,China

Online:2012-11-25 Published:2017-07-25
Supported by:
The National Natural Science Foundation of China;The Natural Science Foundation of Hebei Province;The Scientific Research Fund of Hebei Province Education Department;The Scientific Technology Research and Development Program of Hebei Province

摘要/Abstract

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。

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

Abstract:

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.

Key words: optical network, impairment-aware, routing and wavelength assignment, GVD, SPM

赵继军,郭昆,李志华,王丽荣,赵文玉. 基于物理损伤联合影响的光信号脉宽模型研究[J]. 通信学报, 2012, 33(11): 8-16.

Ji-jun ZHAO,Kun GUO,Zhi-hua LI,Li-rong WANG,Wen-yu ZHAO. Research on pulse width model of optical signal based on effects of combined physical impairments[J]. Journal on Communications, 2012, 33(11): 8-16.

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参考文献 16

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名称	数值
峰值功率	1W
波长窗口	1 550nm
比特速率	40Gbit/s
脉冲初始宽度	7.5ps
光纤长度	10km
非线性系数?	1.317W^-1/km
光纤衰减	可忽略
SPM	可用
GVD	可用
群速度色散参数?₂	-20ps²/km

光纤类型	波长窗口为1 550nm的光纤?₂值/(ps²/km)
标准单模光纤 ITU-G.652	-21.68
零色散位移光纤 ITU-G.653	0
截止位移波长光纤ITU-G.654	-25.50 ～-21.68
非零色散位移光纤 ITU-G.655	-10.20 ～-3.316
宽带传输非零色散位移光纤ITU-G.656	-19.13 ～-2.550

链路	A的影响值	B的影响值
1→2	5	3
2→4	5	4
1→3	2	6
3→4	3	5

名称	数值
峰值功率	1W
波长窗口	1 550nm
比特速率	40Gbit/s
脉冲初始宽度	7.5ps
非线性系数?	1.317W^-1/km
光纤衰减	可忽略
群速度色散参数?₂	5或-5ps²/km
最大脉冲展宽^[11]	10%

仿真次数	P₀/w
1	0.1
2	0.3
3	0.5
4	0.7
5	1

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

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