Spatio-temporal observation of higher-order modulation instability in a recirculating fiber loop

@article{Copie2021SpatiotemporalOO,
  title={Spatio-temporal observation of higher-order modulation instability in a recirculating fiber loop},
  author={François Copie and Pierre Suret and St{\'e}phane Randoux},
  journal={2021 Conference on Lasers and Electro-Optics Europe \& European Quantum Electronics Conference (CLEO/Europe-EQEC)},
  year={2021},
  pages={1-1}
}
  • F. Copie, P. Suret, S. Randoux
  • Published 21 June 2021
  • Physics
  • 2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)
Modulation instability (MI) in fiber optics is a nonlinear process in which a monochromatic signal wave propagating along with a continuous pump wave initially experiences exponential growth, provided that its frequency detuning relative to the pump falls within the MI gain bandwidth [1] . This eventually leads to the formation of pulse trains with characteristic repetition rate. In practice, spectral noise surrounding the pump might itself be amplified by MI in the so-called "noise-induced" or… 

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References

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

TLDR
It is demonstrated experimentally and numerically that the autocorrelation of the optical power g^{(2)}(τ) exhibits some unique oscillatory features typifying the nonlinear stage of the noise-driven modulation instability and of integrable turbulence.

Nonlinear Evolution of the Locally Induced Modulational Instability in Fiber Optics.

TLDR
Using a recirculating fiber loop as the experimental platform, it is shown 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.

Higher-order modulation instability in nonlinear fiber optics.

TLDR
It is shown how a suitably low frequency modulation on a continuous wave field induces higher-order modulation instability splitting with the pulse characteristics at different phases of evolution related by a simple scaling relationship.