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首页> 外文期刊>Journal of the Optical Society of America, B. Optical Physics >Modulation instability in a nonlinear oppositely directed coupler with saturable nonlinearities and higher-order effects
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Modulation instability in a nonlinear oppositely directed coupler with saturable nonlinearities and higher-order effects

机译：具有饱和非线性和高阶效应的非线性反向耦合器的调制不稳定性

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摘要

The influence of a saturable nonlinearity on the modulation instability (MI) in an oppositely directed coupler in the presence of high-order effects is investigated. The instability gain is attained by using standard linear stability analysis. In particular, we study the combination of a saturable nonlinearity with self-steepening or intrapulse Raman scattering effects on MI for both normal and anomalous group velocity dispersion regimes. We observe that the instability gain exhibits significant changes due to the effects of the saturable nonlinearity. Finally, we show that efficient control of the MI can be realized by adjusting the self-steepening effect and intrapulse Raman scattering, even in the presence of a saturable nonlinearity. (C) 2016 Optical Society of America
机译：研究了在存在高阶效应的情况下，饱和非线性对反向耦合器中调制不稳定性（MI）的影响。通过使用标准线性稳定性分析可获得不稳定性增益。特别是，我们研究了正常和异常组速度色散状态下，饱和非线性与自加速或脉冲内拉曼散射对MI的组合。我们观察到，由于饱和非线性的影响，不稳定性增益呈现出显着变化。最后，我们表明即使在存在饱和非线性的情况下，也可以通过调节自加力效应和脉冲内拉曼散射来实现对MI的有效控制。 （C）2016美国眼镜学会

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