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Stable vortex solitons in nonlocal self-focusing nonlinear media

2005; American Physical Society; Volume: 71; Issue: 6 Linguagem: Inglês

10.1103/physreve.71.065603

1550-2376

A. I. Yakimenko, Yuri Zaliznyak, Yuri S. Kivshar,

Advanced Fiber Laser Technologies

We reveal that spatially localized vortex solitons become stable in self-focusing nonlinear media when the vortex symmetry-breaking azimuthal instability is eliminated by a nonlocal nonlinear response. We study the main properties of different types of vortex beams and discuss the physical mechanism of the vortex stabilization in spatially nonlocal nonlinear media.