Publication:
Self-frequency shift effect for chirped self-similar solitons in a tapered graded-indexed waveguide

Дата
2020
Авторы
Triki, H.
Zhou, Q.
Xu, S. -L.
Alzahrani, A. K.
Biswas, A.
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Научные группы
Организационные подразделения
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Аннотация
© 2020 Elsevier B.V.This work studies the transmission dynamics of self-similar optical beams through an inhomogeneous tapered graded-index waveguide under diffraction and nonlinearity management as well as self-frequency shift arising from stimulated Raman scattering (SRS). A similarity transformation connecting with the constant-coefficient higher-order nonlinear Schrö dinger's equation (HNLSE) is employed to construct new self-similar solitons for wave field. We demonstrate that the self-frequency shift term alone turns the self-similar pulses to be nonlinear chirped. The results indicate that the nonlinear chirp related to the self-similar localized waves is directly proportional to the intensity of the optical beam. The necessary and sufficient conditions on tapered graded-index nonlinear waveguide parameters for such nonlinearly chirped self-similar localized waves exist in this model are suggested. The dynamical behaviors of those chirped optical similaritons are also investigated in a periodically distributed waveguide as well as a diffraction decreasing waveguide.
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Self-frequency shift effect for chirped self-similar solitons in a tapered graded-indexed waveguide / Triki, H. [et al.] // Optics Communications. - 2020. - 468. - 10.1016/j.optcom.2020.125800
URI
https://www.doi.org/10.1016/j.optcom.2020.125800
 https://www.scopus.com/record/display.uri?eid=2-s2.0-85081980601&origin=resultslist
 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000531736600007
 https://openrepository.mephi.ru/handle/123456789/20424
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