研究色散控制光孤子系统中的放大器的自发辐射噪声与交叉相位调制对孤子传输特性的影响,采用变分法分析了色散控制孤子的均方频移、定时抖动和误码特性,从降低自发辐射噪声和交叉相位调制扰动引起的均方频移出发,确定了补偿段的特性参量,给出了三种传输控制方案,分析了各方案中色散控制孤子的传输特性,其结果对色散控制孤子系统的设计具有参考价值。

The effects of the amplifier spontaneous emission noise and the cross phase modulation in WDM on dispersion mamanged soliton (DMS) are theoretically analyzed. Based on the variational method, the mean square frequency shift, timing jitter and bit error ratio of dispersion managed soliton are obtained. For reducing mean square frequency shift of these perturbations, we also fix on the characteristic parameters of compensated fiber and compare three proposed schemes on the performance of DMS, these results can be used to optimal allocated dispersion managed soliton system.