Partially incoherent optical vortices in self-focusing nonlinear media
Journal
Physical Review Letters
Journal Volume
92
Journal Issue
4
Date Issued
2004
Author(s)
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. © 2004 The American Physical Society.
Type
journal article