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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 17 — Sep. 1, 2013
  • pp: 3414–3417

Dynamics of topological light states in spiraling structures

Yaroslav V. Kartashov, Victor A. Vysloukh, and Lluis Torner  »View Author Affiliations


Optics Letters, Vol. 38, Issue 17, pp. 3414-3417 (2013)
http://dx.doi.org/10.1364/OL.38.003414


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Abstract

We expose a mechanism for the dynamical generation and control of light states with diverse topologies in spiraling guiding structures. Specifically, we show that spiraling shallow refractive index landscapes induce coupling and periodic energy exchange between states with different topological charges. Such a resonant effect enables excitation of optical vortices by vortex-free inputs and allows the output topological charge of the beam to be controlled. The presence of nonlinearity results in a strong asymmetrization of the resonant curves and a shift of the resonant frequencies. Resonant vortex dynamic generation, including revivals, is shown to be possible not only in waveguides mediated by total internal reflection but also in Bragg-guiding hollow-core geometries.

© 2013 Optical Society of America

OCIS Codes
(190.5940) Nonlinear optics : Self-action effects
(190.6135) Nonlinear optics : Spatial solitons

ToC Category:
Nonlinear Optics

History
Original Manuscript: July 2, 2013
Revised Manuscript: July 30, 2013
Manuscript Accepted: July 30, 2013
Published: August 28, 2013

Citation
Yaroslav V. Kartashov, Victor A. Vysloukh, and Lluis Torner, "Dynamics of topological light states in spiraling structures," Opt. Lett. 38, 3414-3417 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-17-3414

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