这种效应叫做自相位调制。
该现象可以用高斯光束通过介质时产生的空间自相位调制解释。
This phenomenon can be explained by the spatial self-phase modulation of the Gaussian beam passing through the nonlinear medium.
尾波场效应导致脉冲自相位调制的不对称性，其大小与初始脉冲形状和脉宽大小有关。
The effect of wakefield, which depends on the initial pulse shape and width, leads to the asymmetry of pulse self phase modulation.
结果表明：自相位调制不影响混沌信号脉冲的形状，但能产生非线性相移使混沌信号频谱展宽；
Self-phase modulation of fiber does not affect the pulse shape of chaotic signal, however, its product of nonlinear phase shift can widen the chaotic signal spectrum.
通过研究它的光学特性，我们发现，由于自相位调制(SPM)，NOLM有压缩光脉冲脉宽的功能。
Firstly, we find that NOLM has a function of compressing optical pulse width, self-phase modulation (SPM) in NOLMs is a crucial reason.
研究表明，系统的定态输出随系统的调制深度或调制频率、群速色散或自相位调制等参量值的变化而变化。
The results show that the evolution of the steady-state output parameters of the system varies with the values of modulation parameters, group velocity dispersion and self phase modulation.
在群速度色散和自相位调制的共同作用下，可用分步傅里叶方法模拟初始啁啾对高斯脉冲在光纤中传输的影响。
Then the effects of higher-order group-velocity dispersion (GVD) on SC generation in different fibers are analyzed and contrasted in details through simulation.
但是，由于非线性自相位调制效应的影响，在其它参数相同条件下，正色散时的ISI限制距离比负色散时要长得多。
But for the influence of self phase modulation, the ISI limited distance of positive dispersion is much longer than that of negative dispersion.
理论上分析了该方案利用自相位调制(SPM)效应产生均衡作用的基本原理，指出了该方案所能达到的最佳均衡指标。
The operation principle based on self-phase modulation (SPM) effect is explained and the best achievable performance is given from the analysis results.
同时对于RZ - DPSK信号，研究了利用自相位调制实现再生的局限性，给出了利用四波混频实现再生的初始条件。
Besides, the limitation of RZ-DPSK regeneration utilizing self-phase modulation is discussed. The initial conditions using four-wave mixing to achieve regeneration is given.
根据综合研究非线性效应的考虑，本文研究了自相位调制及交叉相位调制对四波混频相位匹配的影响，在一定的简化下得到了解析的结果。
By following the way of studying the nonlinear effect as a whole, the influence of the SPM and XPM to the phase matching condition of FWM is studied.
根据综合研究非线性效应的考虑，本文研究了自相位调制及交叉相位调制对四波混频相位匹配的影响，在一定的简化下得到了解析的结果。
By following the way of studying the nonlinear effect as a whole, the influence of the SPM and XPM to the phase matching condition of FWM is studied.
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