Quiescent Gap Solitons in Coupled Nonuniform Bragg Gratings with Cubic-Quintic Nonlinearity

被引：9

作者：

Akter, Afroja ^{[1
]}

Islam, Md. Jahedul ^{[2
]}

Atai, Javid ^{[1
]}

机构：

[1] Univ Sydney, Sch Elect & Informat Engn, Sydney, NSW 2006, Australia

[2] Khulna Univ Engn & Technol KUET, Dept Elect & Elect Engn, Khulna 9203, Bangladesh

来源：

APPLIED SCIENCES-BASEL | 2021年 / 11卷 / 11期

关键词：

Bragg grating soliton; dispersive reflectivity; cubic-quintic nonlinearity; DISPERSION COMPENSATION; PULSE-PROPAGATION; FIBER; STABILITY; 5TH-ORDER; FILTER; MODEL;

D O I：

10.3390/app11114833

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We study the stability characteristics of zero-velocity gap solitons in dual-core Bragg gratings with cubic-quintic nonlinearity and dispersive reflectivity. The model supports two disjointed families of gap solitons (Type 1 and Type 2). Additionally, asymmetric and symmetric solitons exist in both Type 1 and Type 2 families. A comprehensive numerical stability analysis is performed to analyze the stability of solitons. It is found that dispersive reflectivity improves the stability of both types of solitons. Nontrivial stability boundaries have been identified within the bandgap for each family of solitons. The effects and interplay of dispersive reflectivity and the coupling coefficient on the stability regions are also analyzed.

引用

页数：10

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