Nonlocal cubic and quintic nonlinear wave patterns in pure-quartic media

Camus Gaston Latchio Tiofack, Conrad Bertrand Tabi, Hippolyte Tagwo, Timoléon Crépin Kofané

Research output: Contribution to journalArticlepeer-review


In this work, pure-quartic soliton (PQS)formation is investigated in the framework of a nonlinear Schrödinger equation with competing Kerr (cubic) and non-Kerr (quintic) nonlocal nonlinearities and quartic dispersion. In the process, the modulational instability (MI) phenomenon is activated under a suitable balance between the nonlocal nonlinearities and the quartic dispersion, both for exponential and rectangular nonlocal nonlinear responses. Interestingly, the maximum MI growth rate and bandwidth are reduced or can completely be suppressed for some specific values of the cubic and quintic nonlocality parameters, depending on the type of nonlocal response. The analytical results are confirmed via direct numerical simulations, where the instability supports the signature of pure-quartic dark and bright solitons. These results may provide a better understanding of PQS structures for their potential applications in the next generation of nonlinear optical devices.

Original languageEnglish
Article number054001
JournalJournal of Optics (United Kingdom)
Issue number5
Publication statusPublished - May 2023

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics


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