Partially Incoherent Optical Vortices in Self-Focusing Nonlinear Media

Technical University Darmstadt, Darmstadt, Hesse, Germany
Physical Review Letters (Impact Factor: 7.51). 02/2004; 92(4):043904. DOI: 10.1103/PhysRevLett.92.043904
Source: PubMed


The stable propagation of spatially localized optical vortices in self-focusing nonlinear media was investigated. The optical vortices were created by partially incoherent light beams which propagated in a photorefractive nonlinear medium and carried a phase dislocation. The single-charge and double-charge optical vortices were stabilized in self-focusing nonlinear media when the value of the spatial incoherence of light exceeded a certain threshold. The results show that the vortex stabilization was confirmed by numerical simulations and was also applied to higher-order vortices.

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