Chirped optical solitons having polynomial law of nonlinear refractive index with self-steepening and nonlinear dispersion

被引：13

作者：

Triki, Houria ^{[1
]}

Zhou, Qin ^{[2
]}

Biswas, Anjan ^{[2
,3
,4
,5
]}

Liu, Wenjun ^{[6
,7
]}

Yildirim, Yakup ^{[8
]}

Alshehri, Hashim M. ^{[2
]}

Belic, Milivoj R. ^{[9
]}

机构：

[1] Badji Mokhtar Univ, Fac Sci, Dept Phys, Radiat Phys Lab, POB 12, Annaba 23000, Algeria

[2] King Abdulaziz Univ, Dept Math, Math Modeling & Appl Computat MMAC Res Grp, Jeddah 21589, Saudi Arabia

[3] Natl Res Nucl Univ, Dept Appl Math, 31 Kashirskoe Hwy, Moscow 115409, Russia

[4] Sefako Makgatho Hlth Sci Univ, Dept Math & Appl Math, ZA-0204 Pretoria, South Africa

[5] Alabama A&M Univ, Dept Phys Chem & Math, Normal, AL 35762 USA

[6] Beijing Univ Posts & Telecommun, State Key Lab Informat Photon & Opt Commun, POB 122, Beijing 100876, Peoples R China

[7] Beijing Univ Posts & Telecommun, Sch Sci, POB 122, Beijing 100876, Peoples R China

[8] Near East Univ, Fac Arts & Sci, Dept Math, CY-99138 Nicosia, Cyprus

[9] Inst Phys Belgrade, Pregrevica 118, Zemun 11080, Serbia

来源：

PHYSICS LETTERS A | 2021年 / 417卷

基金：

中国国家自然科学基金;

关键词：

Solitary wave; Frequency chirp; Cubic-quintic-septimal media; PROPAGATION;

D O I：

10.1016/j.physleta.2021.127698

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate the existence of chirped solitary waves in cubic-quintic-septimal materials under the influence of the Raman and self-steepening effects. We find new types of localized wave solutions that are characterized by an intensity-dependent frequency chirp, including dark and bright solitary waves. The nonlinearity in the frequency chirp associated with these localized pulses originates from the Raman and self-steepening processes. The formation of these nonlinearly chirped pulses is derived from parametric conditions. Effects of nonlinear parameters on the frequency chirp are discussed as well. The magnitude of the chirp can be efficiently governed by varying the self-steepening and Raman parameters. (C) 2021 Elsevier B.V. All rights reserved.

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页数：6

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