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Optics Letters

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  • Vol. 22, Iss. 23 — Dec. 1, 1997
  • pp: 1751–1753

Steady-state vortex-screening solitons formed in biased photorefractive media

Zhigang Chen, Ming-feng Shih, Mordechai Segev, Daniel W. Wilson, Richard E. Muller, and Paul D. Maker  »View Author Affiliations


Optics Letters, Vol. 22, Issue 23, pp. 1751-1753 (1997)
http://dx.doi.org/10.1364/OL.22.001751


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Abstract

We report the observation of steady-state photorefractive vortex-screening solitons. As a singly charged circular vortex nested on a broad beam propagates through a biased strontium barium niobate crystal, it self-traps in both transverse dimensions despite the inherent anisotropy of the photorefractive nonlinearity. When the vortex beam is a doughnut-shaped narrow beam, it breaks up into two elongated slices (with a self-defocusing nonlinearity) or into two focused filaments (with a self-focusing nonlinearity). We demonstrate the optical guidance of a probe beam in a circular waveguide induced by the self-trapped vortex.

© 1997 Optical Society of America

Citation
Zhigang Chen, Ming-feng Shih, Mordechai Segev, Daniel W. Wilson, Richard E. Muller, and Paul D. Maker, "Steady-state vortex-screening solitons formed in biased photorefractive media," Opt. Lett. 22, 1751-1753 (1997)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-22-23-1751


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References

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