Firstly, we find that NOLM has a function of compressing optical pulse width, self-phase modulation (SPM) in NOLMs is a crucial reason.

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。

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The operation principle based on self-phase modulation (SPM) effect is explained and the best achievable performance is given from the analysis results.

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。

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