Abstract
We report on experimental results where a temporal intensity profile presenting some of the main signatures of the Peregrine soliton (PS) is observed. However, the emergence of a highly peaked structure over a continuous background in a normally dispersive fiber cannot be linked to any PS dynamics and is mainly ascribed to the impact of Brillouin backscattering.
Highlights
Peregrine soliton (PS) or breather that was initially analytically derived by H
PS is a rational solution of the nonlinear Schrodinger equation (NLSE) that describes the evolution of light in a fiber with focusing nonlinearity: the combination of anomalous dispersion and self-phase modulation induced by Kerr nonlinearity leads to the emergence of a wave that appears from nowhere and disappears without leaving a trace [3]
It confirms that the ratio R of the peak-power/continuous background continuously increases with the input power, to what can be usually observed with breathers in the initial stage of the growth and decay cycle
Summary
Peregrine soliton (PS) or breather that was initially analytically derived by H. Peregrine [1] has since its first experimental demonstration in a physical system in 2010 [2] generated a very large number of experimental and theoretical studies driven primarily by the search for extreme events [3]. This coherent structure presenting temporal and spatial localizations has been extensively investigated first in the field of fiber optics [2, 4] and in the hydrodynamic domain [5] and multicomponent plasmas [6]. PS or breather features have been experimentally or theoretically reported in lasers [14], optical cavities [15], metamaterials [16], quadratic or photorefractive media [17, 18]
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