色散和非线性效应对单极性光码分多址系统性能的影响  

Dispersion and Nonliearity Effect on the Performance of Unipolar OCDMA System

作　　者：左超[1] 马文华[1] 林金桐[1] 

机构地区：[1]北京邮电大学电信工程学院,北京100876

出　　处：《北京邮电大学学报》2001年第2期26-30,共5页Journal of Beijing University of Posts and Telecommunications

摘　　要：分析了基于光正交码 (OOC)的光码分多址系统的性能 .数值结果表明 :与以前忽略光纤信道对系统性能的情况相比 ,在考虑了光纤的色散和非线性效应以后 ,系统性能有了明显的下降 .给出了一些建议方案来遏制由色散和非线性效应引起的系统性能恶化 .Analyzes the performance of unipolar OCDMA system using optical orthogonal code (OOC) considering the dispersion and nonlinearity effect of the transmission medium. Theoretical analysis demonstrates that dispersion and nonlinearity effect deteriorate the system performance. The performance of OCDMA system assuming dispersion shifted fiber as transmission medium is very close to the case neglecting the dispersion and nonlinearity effect. Assuming RZ initial pulse and optical hard limiter are also possible solutions.

关 键 词：光码分多址 非线性效应 光正交码 通信系统 色散效应 

分 类 号：TN914.53[电子电信—通信与信息系统] TN929.1[电子电信—信息与通信工程]