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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 22, Iss. 7 — Jul. 1, 2005
  • pp: 1437–1442

Spatial coherence singularities and incoherent vortex solitons

Kristian Motzek, Yuri S. Kivshar, Ming-Feng Shih, and Grover A. Swartzlander, Jr.  »View Author Affiliations


JOSA B, Vol. 22, Issue 7, pp. 1437-1442 (2005)
http://dx.doi.org/10.1364/JOSAB.22.001437


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Abstract

We study spatially localized optical vortices created by self-trapping of partially incoherent light with a phase dislocation in a biased photorefractive crystal. In contrast to a decay of coherent self-trapped vortex beams due to the azimuthal modulational instability, the incoherent vortices are stabilized for large values of the spatial incoherence; this was confirmed by experiment. We analyze the spatial coherence properties of the incoherent optical vortices and reveal the existence of ringlike singularities in the spatial coherence function of a vortex field that can characterize the stable propagation of vortices through nonlinear media.

© 2005 Optical Society of America

OCIS Codes
(030.1640) Coherence and statistical optics : Coherence
(190.4420) Nonlinear optics : Nonlinear optics, transverse effects in

Citation
Kristian Motzek, Yuri S. Kivshar, Ming-Feng Shih, and Grover A. Swartzlander, Jr., "Spatial coherence singularities and incoherent vortex solitons," J. Opt. Soc. Am. B 22, 1437-1442 (2005)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-22-7-1437

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