Degenerate fundamental nonlinear waves on the nonzero-zero background for a coupled Hirota system in a birefringent fiber

作者：

Highlights：

• A two-branch condition is found to divide the fundamental nonlinear waves (FNWs) into three-branch case and two-branch case.

• Degenerate two-branch FNW is the nonlinear superposition of a breather, a dark-bright soliton and a two-branch FNW, and the trajectories of such three branches possess the same linear part but are not symmetric with respect to the common linear part.

摘要

•A two-branch condition is found to divide the fundamental nonlinear waves (FNWs) into three-branch case and two-branch case.•Degenerate two-branch FNW is the nonlinear superposition of a breather, a dark-bright soliton and a two-branch FNW, and the trajectories of such three branches possess the same linear part but are not symmetric with respect to the common linear part.

论文关键词：Birefringent fiber,Coupled Hirota system,Degenerate fundamental nonlinear waves,Asymptotic analysis,Nonzero-zero background

论文评审过程：Received 3 November 2021, Revised 16 August 2022, Accepted 7 September 2022, Available online 24 September 2022, Version of Record 24 September 2022.

论文官网地址：https://doi.org/10.1016/j.amc.2022.127542