预测自相位调制模式的简单指南
Simple guidelines to predict self-phase modulation patterns
摘要：
提出了一种简单的方法来预测光谱的主要特征的影响自相位调制（SPM），这是基于把光谱修改作为一种干涉效应。一个两波干涉模型被发现足以描述的SPM加宽的光谱的初始transform-limited或上啁啾脉冲，而第三波应包括在模型中的初始下啁啾脉冲。简单的解析公式推导，准确地预测的光谱的最外峰的位置。
英文摘要：
We present a simple approach to predict the main features of optical spectra affected by self-phase modulation (SPM), which is based on regarding the spectrum modification as an interference effect. A two-wave interference model is found sufficient to describe the SPM-broadened spectra of initially transform-limited or up-chirped pulses, whereas a third wave should be included in the model for initially down-chirped pulses. Simple analytical formulae are derived, which accurately predict the positions of the outermost peaks of the spectra.
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