najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2019-10-3-273-281najo-560Research ArticlePHYSICSФИЗИКАA theoretical study of the propagation of light soliton produced by semiconductor quantum dots through optical fibersSwamiO. P.

Department of Physics

Loonkaransar, Bikaner, Rajasthan, 334001

omg1789@gmail.comKumarV.

Department of Physics

Bikaner, Rajasthan, 334001

vijendrasaini2009@gmail.comSutharB.

Department of Physics

Nokha, Bikaner, Rajasthan, 334803

bhuvneshwer@gmail.comNagarA. K.

Department of Physics

Bikaner, Rajasthan, 334001

ajaya.nagar@gmail.comGovernment CollegeIndiaGovernment Dungar CollegeIndiaMLB Government CollegeIndia201907082025103273281Copyright © Swami O.P., Kumar V., Suthar B., Nagar A.K., 20252025Swami O.P., Kumar V., Suthar B., Nagar A.K.Swami O.P., Kumar V., Suthar B., Nagar A.K.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/560

In this paper, the propagation of light soliton is studied in nonlinear optical fiber. We propose the external excitation of semiconductor quantum dot (SQD) waveguides through an optical source which allows the generation of solitonic pulses. These solitonic pluses are propagated through a nonlinear optical fiber. Soliton formation is investigated by the interaction between the external optical excitation and SQDs. Here, the SQDs are considered as a quantum system of three energy levels. In this study, the Fourier Split-Step (FSS) method is used to solve the numerically continuous nonlinear Schrdinger equation (NLSE) for evolution of the soliton pulse emitted by the SQDs inside an optical fiber with real physical parameters. The effect of a SQD’s density and electric field on the pulse width is also studied. Phase plane portraits are drawn to observe the stability of soliton in fiber and SQDs.

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The authors declare that there are no conflicts of interest present.