Abstract : 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 文摘: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
