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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 21 — Oct. 13, 2008
  • pp: 16935–16940

Ultrafast transverse undulation of self-trapped laser beams

S.-P. Gorza and M. Haelterman  »View Author Affiliations

Optics Express, Vol. 16, Issue 21, pp. 16935-16940 (2008)

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The propagation of a self-trapped laser beam in a planar waveguide that exhibits a Kerr nonlinearity and a normal chromatic dispersion is considered. We demonstrate experimentally for the first time to our knowledge that such a beam undergoes an undulation responsible for ultrafast transverse oscillations of its axis. This phenomenon, called “snake instability”, was predicted theoretically in 1973 by Zakharov and Rubenchik on the basis of a study of the soliton solutions of the hyperbolic nonlinear Schrödinger equation. The signature of this instability is observed in the spatially resolved temporal spectrum.

© 2008 Optical Society of America

OCIS Codes
(190.3100) Nonlinear optics : Instabilities and chaos
(190.4420) Nonlinear optics : Nonlinear optics, transverse effects in
(190.6135) Nonlinear optics : Spatial solitons

ToC Category:
Nonlinear Optics

Original Manuscript: August 27, 2008
Revised Manuscript: September 30, 2008
Manuscript Accepted: October 3, 2008
Published: October 8, 2008

S.-P. Gorza and M. Haelterman, "Ultrafast transverse undulation of self-trapped laser beams," Opt. Express 16, 16935-16940 (2008)

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