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Article Dans Une Revue PHYSICAL REVIEW LETTERS Année : 2019

Nonlinear Evolution of the Locally Induced Modulational Instability in Fiber Optics

Résumé

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 Schrodinger 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.

Dates et versions

hal-04537053 , version 1 (08-04-2024)

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Adrien E. Kraych, Pierre Suret, Gennady El, Stephane Randoux. Nonlinear Evolution of the Locally Induced Modulational Instability in Fiber Optics. PHYSICAL REVIEW LETTERS, 2019, 122 (5), ⟨10.1103/PhysRevLett.122.054101⟩. ⟨hal-04537053⟩
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