Crossover from two-frequency pulse compounds to escaping solitons

Abstract The nonlinear interaction of copropagating optical solitons enables a large variety of intriguing bound-states of light. We here investigate the interaction dynamics of two initially superimposed fundamental solitons at distinctly different frequencies. Both pulses are located in distinct d...

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Autores principales:	O. Melchert, S. Willms, U. Morgner, I. Babushkin, A. Demircan
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/0ecffaf50c49483b9d132138770a5165
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spelling	oai:doaj.org-article:0ecffaf50c49483b9d132138770a51652021-12-02T15:00:14ZCrossover from two-frequency pulse compounds to escaping solitons10.1038/s41598-021-90705-62045-2322https://doaj.org/article/0ecffaf50c49483b9d132138770a51652021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-90705-6https://doaj.org/toc/2045-2322Abstract The nonlinear interaction of copropagating optical solitons enables a large variety of intriguing bound-states of light. We here investigate the interaction dynamics of two initially superimposed fundamental solitons at distinctly different frequencies. Both pulses are located in distinct domains of anomalous dispersion, separated by an interjacent domain of normal dispersion, so that group velocity matching can be achieved despite a vast frequency gap. We demonstrate the existence of two regions with different dynamical behavior. For small velocity mismatch we observe a domain in which a single heteronuclear pulse compound is formed, which is distinct from the usual concept of soliton molecules. The binding mechanism is realized by the mutual cross phase modulation of the interacting pulses. For large velocity mismatch both pulses escape their mutual binding and move away from each other. The crossover phase between these two cases exhibits two localized states with different velocity, consisting of a strong trapping pulse and weak trapped pulse. We detail a simplified theoretical approach which accurately estimates the parameter range in which compound states are formed. This trapping-to-escape transition allows to study the limits of pulse-bonding as a fundamental phenomenon in nonlinear optics, opening up new perspectives for the all-optical manipulation of light by light.O. MelchertS. WillmsU. MorgnerI. BabushkinA. DemircanNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q O. Melchert S. Willms U. Morgner I. Babushkin A. Demircan Crossover from two-frequency pulse compounds to escaping solitons
description	Abstract The nonlinear interaction of copropagating optical solitons enables a large variety of intriguing bound-states of light. We here investigate the interaction dynamics of two initially superimposed fundamental solitons at distinctly different frequencies. Both pulses are located in distinct domains of anomalous dispersion, separated by an interjacent domain of normal dispersion, so that group velocity matching can be achieved despite a vast frequency gap. We demonstrate the existence of two regions with different dynamical behavior. For small velocity mismatch we observe a domain in which a single heteronuclear pulse compound is formed, which is distinct from the usual concept of soliton molecules. The binding mechanism is realized by the mutual cross phase modulation of the interacting pulses. For large velocity mismatch both pulses escape their mutual binding and move away from each other. The crossover phase between these two cases exhibits two localized states with different velocity, consisting of a strong trapping pulse and weak trapped pulse. We detail a simplified theoretical approach which accurately estimates the parameter range in which compound states are formed. This trapping-to-escape transition allows to study the limits of pulse-bonding as a fundamental phenomenon in nonlinear optics, opening up new perspectives for the all-optical manipulation of light by light.
format	article
author	O. Melchert S. Willms U. Morgner I. Babushkin A. Demircan
author_facet	O. Melchert S. Willms U. Morgner I. Babushkin A. Demircan
author_sort	O. Melchert
title	Crossover from two-frequency pulse compounds to escaping solitons
title_short	Crossover from two-frequency pulse compounds to escaping solitons
title_full	Crossover from two-frequency pulse compounds to escaping solitons
title_fullStr	Crossover from two-frequency pulse compounds to escaping solitons
title_full_unstemmed	Crossover from two-frequency pulse compounds to escaping solitons
title_sort	crossover from two-frequency pulse compounds to escaping solitons
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/0ecffaf50c49483b9d132138770a5165
work_keys_str_mv	AT omelchert crossoverfromtwofrequencypulsecompoundstoescapingsolitons AT swillms crossoverfromtwofrequencypulsecompoundstoescapingsolitons AT umorgner crossoverfromtwofrequencypulsecompoundstoescapingsolitons AT ibabushkin crossoverfromtwofrequencypulsecompoundstoescapingsolitons AT ademircan crossoverfromtwofrequencypulsecompoundstoescapingsolitons
_version_	1718389183987318784

Crossover from two-frequency pulse compounds to escaping solitons

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