交叉相位调制所致啁啾的研究

Study on Cross-phase Modulation Induced Chirp

推出了存在光纤损耗时交叉相位调制效应所产生的啁啾的解析表达式 .利用计算机模拟了啁啾演变过程 ,并分析了啁啾与光纤损耗系数、群速度失配的关系 .结果表明 ,啁啾受光纤损耗影响很小 ;受群速度失配影响较大 ;啁啾经过一段光纤演变后趋于稳定 .

Considering the fiber loss, an analytic expression of the cross phase modulation induced chirp is derived. Evolution of chirp is simulated by computer and chirp as a function of the fiber loss and group velocity mismatch is analysed. The results show that the chirp is little affected by the fiber loss and largely affected by the group velocity mismatch; the chirp tend to stable evolved in the fiber.