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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 20 — Oct. 1, 2007
  • pp: 12916–12921

Switching with vortex beams in nonlinear concentric couplers

José R. Salgueiro and Yuri S. Kivshar  »View Author Affiliations


Optics Express, Vol. 15, Issue 20, pp. 12916-12921 (2007)
http://dx.doi.org/10.1364/OE.15.012916


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Abstract

We demonstrate that a concentric ring coupler can be employed for nonlinear switching of the angular momentum of light carried by an optical vortex. We find different types of stationary vortex states in the nonlinear coupler and study coupling of both power and momentum of an optical vortex launched into one of the rings, demonstrating that the switching takes place well below the collapse threshold. The switching is more effective for the inner-ring excitation since it triggers more sharply and for the powers low enough to avoid the vortex instability and breakup.

© 2007 Optical Society of America

OCIS Codes
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(190.3270) Nonlinear optics : Kerr effect

ToC Category:
Nonlinear Optics

History
Original Manuscript: July 20, 2007
Revised Manuscript: September 4, 2007
Manuscript Accepted: September 18, 2007
Published: September 24, 2007

Citation
José R. Salgueiro and Yuri S. Kivshar, "Switching with vortex beams in nonlinear concentric couplers," Opt. Express 15, 12916-12921 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-20-12916


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References

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