交叉相位调制产生调制不稳定性的基态增益谱

The Modulation Instability Fundamental Gain Spectrum by Cross-phase Modulation

摘要:

在考虑光纤损耗的情况下，从非线性薛定谔方程出发，推出了交叉相位调制（ＸＰＭ）所致财制不稳定性（Ｍ）的基态增益谱。研究结果表明，ＸＰＭ产生的ＭＩ不仅在光纤反常色散区可以产生，而且在正常色散区也可以产生；光纤损耗不仅影响增益谱的下降，而且影响增益范围减小。

Abstract:

Taken into account the fiber loss,the fundamental gain spectrum of modulation instability (MI) induced cross-phase modulation (XPM) is presented from the nonlinear Schrodinger equation.The results show that the XPM induced MI not only in the anomalous-dispersion regime but also in the normal-dispersion regime;the gain spectrum is come down and gain range is decreased by the fiber loss.