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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 7, Iss. 6 — Jun. 1, 1990
  • pp: 1072–1078

Transverse modulation instability of copropagating optical beams in nonlinear Kerr media

Govind P. Agrawal  »View Author Affiliations


JOSA B, Vol. 7, Issue 6, pp. 1072-1078 (1990)
http://dx.doi.org/10.1364/JOSAB.7.001072


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Abstract

Two optical beams, copropagating in a Kerr medium, interact with each other through cross-phase modulation. Such nonlinear beam coupling leads to a transverse modulation instability that is evident as spatial modulation of the beam profiles. A linear-stability analysis in the plane-wave approximation predicts the range of spatial frequencies over which modulation can occur. The case of self-defocusing media is particularly interesting, since modulation instability occurs only when both beams are present simultaneously. Numerical simulations are used to study how modulation instability can occur for finite-size beams. In particular, the mutual coupling of two copropagating Gaussian beams is studied in detail.

© 1990 Optical Society of America

History
Original Manuscript: September 18, 1989
Manuscript Accepted: January 17, 1990
Published: June 1, 1990

Citation
Govind P. Agrawal, "Transverse modulation instability of copropagating optical beams in nonlinear Kerr media," J. Opt. Soc. Am. B 7, 1072-1078 (1990)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-7-6-1072

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