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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 20 — Oct. 7, 2013
  • pp: 23459–23470

Energy shedding during nonlinear self-focusing of optical beams

C. Travis, G. Norris, G. McConnell, and G.-L. Oppo  »View Author Affiliations

Optics Express, Vol. 21, Issue 20, pp. 23459-23470 (2013)

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Self-focusing of intense laser beams and pulses of light in real nonlinear media is in general accompanied by material losses that require corrections to the conservative Nonlinear Schrödinger equations describing their propagation. Here we examine loss mechanisms that exist even in lossless media and are caused by shedding of energy away from the self-trapping beam making it to relax to an exact solution of lower energy. Using the conservative NLS equations with absorbing boundary conditions we show that energy shedding not only occurs during the initial reshaping process but also during oscillatory propagation induced by saturation of the nonlinear effect. For pulsed input we also show that, depending on the sign and magnitude of dispersion, pulse splitting, energy shedding, collapse or stable self-focusing may result.

© 2013 OSA

OCIS Codes
(190.3270) Nonlinear optics : Kerr effect
(190.5530) Nonlinear optics : Pulse propagation and temporal solitons
(260.5950) Physical optics : Self-focusing
(190.6135) Nonlinear optics : Spatial solitons

ToC Category:
Nonlinear Optics

Original Manuscript: August 15, 2013
Revised Manuscript: September 16, 2013
Manuscript Accepted: September 16, 2013
Published: September 25, 2013

C. Travis, G. Norris, G. McConnell, and G.-L. Oppo, "Energy shedding during nonlinear self-focusing of optical beams," Opt. Express 21, 23459-23470 (2013)

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