Stable higher-charge vortex solitons in the cubic–quintic medium with a ring potential

Liangwei Dong*, Mingjing Fan, Boris A. Malomed

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We put forward a model for trapping stable optical vortex solitons (VSs) with high topological charges m. The cubic–quintic nonlinear medium with an imprinted ring-shaped modulation of the refractive index is shown to support two branches of VSs, which are controlled by the radius, width, and depth of the modulation profile. While the lower-branch VSs are unstable in their nearly whole existence domain, the upper branch is completely stable. Vortex solitons with m ≤ 12 obey the anti-Vakhitov–Kolokolov stability criterion. The results suggest possibilities for the creation of stable narrow optical VSs with a low power, carrying higher vorticities.

Original languageEnglish
Pages (from-to)4817-4820
Number of pages4
JournalOptics Letters
Volume48
Issue number18
DOIs
StatePublished - 15 Sep 2023

Funding

FundersFunder number
Israel Science Foundation1695/22
Natural Science Basic Research Program of Shaanxi Province2022JZ-02

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