Phase evolution of Peregrine-like breathers in optics and hydrodynamics.

Date publication

janvier 2019

Journal

Physical review. E

Auteurs

Membres identifiés du Cancéropôle Est :
Dr HAMMANI Kamal

Tous les auteurs :
Xu G, Hammani K, Chabchoub A, Dudley JM, Kibler B, Finot C

Lien Pubmed

https://www.ncbi.nlm.nih.gov/pubmed/30780298

Résumé

We present a simultaneous study of the phase properties of rational breather waves generated in a water wave tank and in an optical fiber platform, namely, the Peregrine soliton and related second-order solution. Our analysis of experimental wave measurements makes use of standard demodulation and filtering techniques in hydrodynamics and more complex phase retrieval techniques in optics to quantitatively confirm analytical and numerical predictions. We clearly highlight a characteristic phase shift that is a multiple of π between the central pulsed part and the continuous background of rational breathers at their maximum compression. Moreover, we reveal a large longitudinal phase shift across the point of maximum compression.

Référence

Phys Rev E. 2019 01;99(1-1):012207