Fundamental and vortex dissipative quadratic solitons supported by spatially localized gain

Lobanov, V.E.; Kalinovich, A.A.; Borovkova, O.V.; Malomed, B.A.

Информация о цитировании статьи получена из Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 8 апреля 2022 г.

Авторы: Lobanov Valery E., Kalinovich Aleksey A., Borovkova Olga V., Malomed Boris A.
Журнал: Physical Review A - Atomic, Molecular, and Optical Physics
Том: 105
Номер: 1
Год издания: 2022
Издательство: American Physical Society
Местоположение издательства: United States
Номер статьи: 013519
DOI: 10.1103/physreva.105.013519
Аннотация: We consider settings providing the existence of stable two-dimensional (2D) dissipative solitons with zero and nonzero vorticity in optical media with quadratic (χ(2)) nonlinearity. To compensate the spatially uniform loss in both the fundamental-frequency (FF) and second-harmonic (SH) components of the system, a strongly localized amplifying region [“hot spot” (HS)] carrying the linear gain, is included, acting on either the FF component or the SH one. In both cases, the Gaussian radial gain profile supports stable fundamental dissipative solitons pinned to the HS. The structure of existence and stability domains for the 2D solitons is rather complex. They demonstrate noteworthy features, such as bistability and spontaneous symmetry breaking. A ring-shaped gain profile acting on the FF component supports stable vortex solitons, with the winding number up to 5, and multipoles. Nontrivial transformation of vortex-soliton profiles upon either growth of the gain value or stretching of the gain profile is observed.
Добавил в систему: Боровкова Ольга Владимировна

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Fundamental and vortex dissipative quadratic solitons supported by spatially localized gainстатья

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