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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 21 — Oct. 17, 2007
  • pp: 13689–13694

Stabilization of optical vortices in noninstantaneous self-focusing medium by small rotating intensity modulation

Shiuan-Yeh Chen, Tzu-Chun Lo, and Ming-Feng Shih  »View Author Affiliations

Optics Express, Vol. 15, Issue 21, pp. 13689-13694 (2007)

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We observe the stabilization of a single-(double-) charge optical vortex propagating in a self-focusing medium. The optical vortex, which carries a phase singularity at its center, usually breaks up in a self-focusing medium due to the so-called azimuthal instability. However, by adding a small rotating azimuthally-periodic intensity modulation on the vortex light beam, which propagates in a noninstantaneous self-focusing medium, we successfully suppress the azimuthal instability. This observation is confirmed by both numerical simulation and perturbational analysis.

© 2007 Optical Society of America

OCIS Codes
(190.3100) Nonlinear optics : Instabilities and chaos
(190.4420) Nonlinear optics : Nonlinear optics, transverse effects in

ToC Category:
Nonlinear Optics

Original Manuscript: September 7, 2007
Revised Manuscript: October 1, 2007
Manuscript Accepted: October 3, 2007
Published: October 4, 2007

Shiuan-Yeh Chen, Tzu-Chun Lo, and Ming-Feng Shih, "Stabilization of optical vortices in noninstantaneous self-focusing medium by small rotating intensity modulation," Opt. Express 15, 13689-13694 (2007)

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