非线性增益随机变化对暗孤子分布放大传输系统的影响

Influence of Stochastic Nonlinear Gain on Dark Soliton Transmission System and Its Suppression

利用守恒量扰动法，研究了暗孤子分布放大传输系统中非线性增益随机变化对暗孤子脉冲到达检测窗口时间抖动，传输系统误码率的影响。结果表明：非线性增益随机变化对暗孤子速度产生了影响，与放大器噪声联合作用增大了暗孤子脉冲到达时间的抖动，恶化了系统的误码率，限制了系统的传输距离，削弱了非线性增益对暗孤子到达时间的抖动抑制作用。

The influence of stochastic nonlinear gain on dark soliton transmission system isstudied, by the conservation of momentum of system. The results show that stoChasticnonlinear gain increases the time jitters in arrival and reduces the distance of dark solitontransmission system. The inIluence can be suppressed well by enhancing the strength ofnonlinear gain.