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

Shiuan Yeh Chen, Tzu Chun Lo, Ming Feng Shih

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)13689-13694
Number of pages6
JournalOptics Express
Volume15
Issue number21
DOIs
Publication statusPublished - 2007 Oct 17

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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