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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 14, Iss. 10 — Oct. 1, 1997
  • pp: 2602–2609

Role of walk-off in solitary-wave propagation in materials with quadratic nonlinearity

A. D. Capobianco, B. Costantini, C. De Angelis, A. Laureti Palma, and G. F. Nalesso  »View Author Affiliations


JOSA B, Vol. 14, Issue 10, pp. 2602-2609 (1997)
http://dx.doi.org/10.1364/JOSAB.14.002602


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Abstract

In the framework of second-harmonic generation with type I phase matching, we investigated the role played by temporal or spatial walk-off. Using a variational technique, we found that a two-parameter class of solutions always exists, even when nonnegligible spatial or temporal walk-off is present. We checked solitonlike behavior for the approximate stationary solutions by numerical integration of the governing equations; expressions of phase condition for stationary solutions and velocity of the locked waves were derived. To outline the possibilities offered by our approach in predicting the behavior of χ(2) devices, several examples for beam and pulse propagation in KTiOPO4and LiNbO3 are presented.

© 1997 Optical Society of America

Citation
A. D. Capobianco, B. Costantini, C. De Angelis, A. Laureti Palma, and G. F. Nalesso, "Role of walk-off in solitary-wave propagation in materials with quadratic nonlinearity," J. Opt. Soc. Am. B 14, 2602-2609 (1997)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-14-10-2602


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