基于光纤自相位调制多波长全光再生的色散管理优化  

Dispersion management optimization of multi-wavelength all-optical regeneration based on self-phase modulation

作　　者：张婧[1] 潘炜[1] 闫连山[1] 罗斌[1] 

机构地区：[1]西南交通大学信息光子与通信研究中心,成都610031

出　　处：《物理学报》2010年第10期7002-7007,共6页Acta Physica Sinica

基　　金：四川省应用基础研究计划(批准号:2008JY0064);教育部新世纪优秀人才支持计划(批准号:NCET-08-0821);区域光纤通信网与新型光通信系统国家重点实验室开放基金资助的课题~~

摘　　要：针对基于光纤自相位调制效应的多波长全光再生系统,分析了光纤平均色散对再生器品质因子改进量的影响,提出一种色散管理优化方法.由于波长间色散差异会导致再生系统性能的稳定性下降,通过选择色散补偿光纤和单模光纤的长度,使其合成的色散曲线与各波长分别达到最优再生性能时对应的色散曲线近似拟合,同时保证该色散曲线落在性能满意度高的色散区域,然后调整信号输入功率和滤波器的偏移量,可有效改善多波长再生性能的稳定性,实现再生器的色散管理优化。In connection with the multi-wavelength all-optical regeneration system based on self-phase modulation in fibers,the effect of the average fiber dispersion for the quality factor Q improvement of regenerator is analyzed and a dispersion management optimization method is proposed.The stability of performance of the regenerator will degrade because of dispersion discrepancy between different wavelengths.By choosing the fiber length of dispersion compensating fiber and single mode fiber to make the dispersion curve of combination of two kinds of fiber approximately fitting with the dispersion curve corresponding to the best performance of each wavelength respectively,and keeping the compound dispersion curve in the better dispersion region,the stability of performance of the regenerator is effectively improved if the input signal power and offset of the filter are properly adjusted.The optimization of multi-wavelength dispersion management can be realized.

关 键 词：全光再生 多波长 色散管理 品质因子 

分 类 号：TN929.11[电子电信—通信与信息系统]