Partially incoherent optical vortices in self-focusing nonlinear media

Abstract

We observe stable propagation of spatially localized single- and double-charge optical vortices in a self-focusing nonlinear medium. The vortices are created by self-trapping of partially incoherent light carrying a phase dislocation, and they are stabilized when the spatial incoherence of light exceeds a certain threshold. We confirm the vortex stabilization effect by numerical simulations and also show that the similar mechanism of stabilization applies to higher-order vortices.

4 pages and 6 figures (including 3 experimental figures)

References in corpus (7)

• Vortex formation in a stirred Bose-Einstein condensate
• Vortex Nucleation in a Stirred Bose-Einstein Condensate
• Stable spinning optical solitons in three dimensions
• Coherent control of spin squeezing
• Stability of spinning ring solitons of the cubic-quintic nonlinear Schrodinger equation
• Elliminating The Transverse Instabilities of Kerr Solitons
• Split Instability of a Vortex in an Attractive Bose-Einstein Condensate

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• Spatial coherence singularities and incoherent vortex solitons
• Incoherent vector vortex-mode solitons in self-focusing nonlinear media
• Resonance in modulation instability from non-instantaneous nonlinearities
• Statistical description of short pulses in long optical fibers: Effects of nonlocality