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Article Dans Une Revue PHYSICAL REVIEW LETTERS Année : 2019

Statistical Properties of the Nonlinear Stage of Modulation Instability in Fiber Optics

Résumé

We present an optical fiber experiment in which we examine the space-time evolution of a modulationally unstable plane wave initially perturbed by a small noise. Using a recirculating fiber loop as an experimental platform, we report the single-shot observation of the noise-driven development of breather structures from the early stage to the long-term evolution of modulation instability. Performing single-point statistical analysis of optical power recorded in the experiments, we observe decaying oscillations of the second-order moment together with the exponential distribution in the long-term evolution, as predicted by Agafontsev and Zakharov [Nonlinearity 28, 2791 (2015).]. Finally, we demonstrate experimentally and numerically that the autocorrelation of the optical power g((2))(tau) exhibits some unique oscillatory features typifying the nonlinear stage of the noise-driven modulation instability and of integrable turbulence.

Dates et versions

hal-04537040 , version 1 (08-04-2024)

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Adrien E. Kraych, Dmitry Agafontsev, Stephane Randoux, Pierre Suret. Statistical Properties of the Nonlinear Stage of Modulation Instability in Fiber Optics. PHYSICAL REVIEW LETTERS, 2019, 123 (9), ⟨10.1103/PhysRevLett.123.093902⟩. ⟨hal-04537040⟩
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