Modulational instability of coupled ring waveguides with linear gain and nonlinear loss

Abstract We consider a nanostructure of two coupled ring waveguides with constant linear gain and nonlinear absorption - the system that can be implemented in various settings including polariton condensates, optical waveguides or atomic Bose-Einstein condensates. It is found that, depending on the...

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Autores principales:	Nguyen Viet Hung, Krzysztof Zegadlo, Aliaksandr Ramaniuk, Vladimir V. Konotop, Marek Trippenbach
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/7c713a9c044a47c5ae6f253a7245892e
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spelling	oai:doaj.org-article:7c713a9c044a47c5ae6f253a7245892e2021-12-02T11:53:06ZModulational instability of coupled ring waveguides with linear gain and nonlinear loss10.1038/s41598-017-04408-y2045-2322https://doaj.org/article/7c713a9c044a47c5ae6f253a7245892e2017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-04408-yhttps://doaj.org/toc/2045-2322Abstract We consider a nanostructure of two coupled ring waveguides with constant linear gain and nonlinear absorption - the system that can be implemented in various settings including polariton condensates, optical waveguides or atomic Bose-Einstein condensates. It is found that, depending on the parameters, this simple configuration allows for observing several complex nonlinear phenomena, which include spontaneous symmetry breaking, modulational instability leading to generation of stable circular flows with various vorticities, stable inhomogeneous states with interesting structure of currents flowing between rings, as well as dynamical regimes having signatures of chaotic behavior.Nguyen Viet HungKrzysztof ZegadloAliaksandr RamaniukVladimir V. KonotopMarek TrippenbachNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Nguyen Viet Hung Krzysztof Zegadlo Aliaksandr Ramaniuk Vladimir V. Konotop Marek Trippenbach Modulational instability of coupled ring waveguides with linear gain and nonlinear loss
description	Abstract We consider a nanostructure of two coupled ring waveguides with constant linear gain and nonlinear absorption - the system that can be implemented in various settings including polariton condensates, optical waveguides or atomic Bose-Einstein condensates. It is found that, depending on the parameters, this simple configuration allows for observing several complex nonlinear phenomena, which include spontaneous symmetry breaking, modulational instability leading to generation of stable circular flows with various vorticities, stable inhomogeneous states with interesting structure of currents flowing between rings, as well as dynamical regimes having signatures of chaotic behavior.
format	article
author	Nguyen Viet Hung Krzysztof Zegadlo Aliaksandr Ramaniuk Vladimir V. Konotop Marek Trippenbach
author_facet	Nguyen Viet Hung Krzysztof Zegadlo Aliaksandr Ramaniuk Vladimir V. Konotop Marek Trippenbach
author_sort	Nguyen Viet Hung
title	Modulational instability of coupled ring waveguides with linear gain and nonlinear loss
title_short	Modulational instability of coupled ring waveguides with linear gain and nonlinear loss
title_full	Modulational instability of coupled ring waveguides with linear gain and nonlinear loss
title_fullStr	Modulational instability of coupled ring waveguides with linear gain and nonlinear loss
title_full_unstemmed	Modulational instability of coupled ring waveguides with linear gain and nonlinear loss
title_sort	modulational instability of coupled ring waveguides with linear gain and nonlinear loss
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/7c713a9c044a47c5ae6f253a7245892e
work_keys_str_mv	AT nguyenviethung modulationalinstabilityofcoupledringwaveguideswithlineargainandnonlinearloss AT krzysztofzegadlo modulationalinstabilityofcoupledringwaveguideswithlineargainandnonlinearloss AT aliaksandrramaniuk modulationalinstabilityofcoupledringwaveguideswithlineargainandnonlinearloss AT vladimirvkonotop modulationalinstabilityofcoupledringwaveguideswithlineargainandnonlinearloss AT marektrippenbach modulationalinstabilityofcoupledringwaveguideswithlineargainandnonlinearloss
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Modulational instability of coupled ring waveguides with linear gain and nonlinear loss

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