Nonlinear Optical Pulses in Media with Asymmetric Gain

S K Turitsyn; A E Bednyakova; E V Podivilov

doi:10.1103/PhysRevLett.131.153802

Nonlinear Optical Pulses in Media with Asymmetric Gain

S K Turitsyn, A E Bednyakova, E V Podivilov

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Abstract

A generic novel model governing optical pulse propagation in a nonlinear dispersive amplifying medium with asymmetric (linear spectral slope) gain is introduced. We examine the properties of asymmetric optical pulses formed in such gain-skewed media, both theoretically and numerically. We derive a dissipative optical modification of the classical shallow water equations that highlights an analogy between this phenomenon and hydrodynamic wave breaking. These findings provide insight into the nature of asymmetric optical pulses capable of accumulating large nonlinear phase without wave breaking, a crucial aspect in the design of nonlinear fiber amplifiers.

Original language	English
Article number	153802
Journal	Physical Review Letters
Volume	131
Issue number	15
DOIs	https://doi.org/10.1103/PhysRevLett.131.153802
Publication status	Published - 12 Oct 2023

Bibliographical note

Published by the American Physical Society under the terms of
the Creative Commons Attribution 4.0 International license.
Further distribution of this work must maintain attribution to
the author(s) and the published article’s title, journal citation,
and DOI.

Funding: The work of A. B. was supported by the Russian Science
Foundation (Grant No. 17-72-30006). S. K. T. acknowledges support by the EU project HALT and the Isaac Newton Institute for Mathematical Sciences, Cambridge within the programme HYD2.

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10.1103/PhysRevLett.131.153802Licence: CC BY 4.0

PhysRevLett.131.153802
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
Final published version, 1.27 MBLicence: CC BY 4.0

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Nonlinear Optical Pulses in Media with Asymmetric Gain

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