Nonlinear Evolution of the Locally Induced Modulational Instability in Fiber Optics.
Nonlinear Evolution of the Locally Induced Modulational Instability in Fiber Optics.
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DOI：
10.1103/physrevlett.122.054101
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发表时间：
2018-05
影响因子：
8.6
通讯作者：
Adrien E. Kraych;P. Suret;G. El;S. Randoux
中科院分区：
文献类型：
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作者：
Adrien E. Kraych;P. Suret;G. El;S. Randoux
我们报道了一个光纤实验，在这个实验中，我们研究了在局域微扰存在下平面波调制不稳定性的非线性阶段。使用循环光纤环作为实验平台，我们表明，初始扰动演化成一个扩展的非线性振荡结构，表现出一些普遍的特性，同意理论预测的基础上的可积性的聚焦非线性薛定谔方程。我们的实验结果表明，持久性的普遍进化的情况下，即使在存在小的耗散和噪声的实验系统，是不是严格的可积性。
We report an optical fiber experiment in which we study the nonlinear stage of modulational instability of a plane wave in the presence of a localized perturbation. Using a recirculating fiber loop as the experimental platform, we show that the initial perturbation evolves into an expanding nonlinear oscillatory structure exhibiting some universal characteristics that agree with theoretical predictions based on integrability properties of the focusing nonlinear Schrödinger equation. Our experimental results demonstrate the persistence of the universal evolution scenario, even in the presence of small dissipation and noise in an experimental system that is not rigorously of an integrable nature.