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Rogue waves for the coupled variable-coefficient fourth-order nonlinear Schrödinger equations in an inhomogeneous optical fiber

Author

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  • Du, Zhong
  • Tian, Bo
  • Chai, Han-Peng
  • Sun, Yan
  • Zhao, Xue-Hui

Abstract

In this paper, investigation is made on the coupled variable-coefficient fourth-order nonlinear Schrödinger equations, which describe the simultaneous propagation of optical pulses in an inhomogeneous optical fiber. Via the generalized Darboux transformation, the first- and second-order rogue wave solutions are constructed. Based on such solutions, effects of the group velocity dispersion coefficient and the fourth-order dispersion coefficient on the rogue waves are graphically analyzed. The first-order rogue waves with the eye-shaped distribution, the interactions between the first-order rogue waves with solitons, and the second-order rogue waves with one highest peak and with the triangular structure are displayed. When the value of the group velocity dispersion coefficient or the fourth-order dispersion increases, range of the first-order rogue wave increases. Composite rogue waves are obtained, where the temporal separation between two adjacent rogue waves can be changed if we adjust the group velocity dispersion coefficient and fourth-order dispersion coefficient. Periodic rogue waves are presented. Periods of such rogue waves decrease with the periods of the group-velocity dispersion and fourth-order dispersion coefficient decreasing.

Suggested Citation

  • Du, Zhong & Tian, Bo & Chai, Han-Peng & Sun, Yan & Zhao, Xue-Hui, 2018. "Rogue waves for the coupled variable-coefficient fourth-order nonlinear Schrödinger equations in an inhomogeneous optical fiber," Chaos, Solitons & Fractals, Elsevier, vol. 109(C), pages 90-98.
    • Handle: RePEc:eee:chsofr:v:109:y:2018:i:c:p:90-98
    DOI: 10.1016/j.chaos.2018.02.017
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    Cited by:

    1. Xianghua Jiang & Xifang Cao, 2022. "Darboux transformation and novel solitons of a coupled system," Indian Journal of Pure and Applied Mathematics, Springer, vol. 53(2), pages 413-424, June.
    2. Wei, Xianyi & He, Zhen & Zhang, Weili, 2022. "Cascaded supercontinuum generation and rogue wave harnessing," Chaos, Solitons & Fractals, Elsevier, vol. 165(P2).
    3. Yan, Zhaowen & Gao, Bian & Chen, Minru & Cui, Jifeng, 2019. "On the higher order Heisenberg supermagnet model in (2+1)-dimensions," Chaos, Solitons & Fractals, Elsevier, vol. 118(C), pages 94-105.

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