期刊
APPLIED SCIENCES-BASEL
卷 11, 期 11, 页码 -出版社
MDPI
DOI: 10.3390/app11114833
关键词
Bragg grating soliton; dispersive reflectivity; cubic-quintic nonlinearity
类别
资金
- RTP Fee-Offset Scholarship through the University of Sydney
This study investigates the stability characteristics of zero-velocity gap solitons in dual-core Bragg gratings with cubic-quintic nonlinearity and dispersive reflectivity. The research finds that dispersive reflectivity enhances the stability of solitons and identifies nontrivial stability boundaries 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.
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.
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