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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 15, Iss. 11 — Nov. 1, 1998
  • pp: 2769–2772

Bandwidth enhancement of second-harmonic generation with quadratic spatial-soliton generation versus conventional methods

M. Ohkawa, R. A. Fuerst, and G. I. Stegeman  »View Author Affiliations


JOSA B, Vol. 15, Issue 11, pp. 2769-2772 (1998)
http://dx.doi.org/10.1364/JOSAB.15.002769


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Abstract

A detailed numerical comparison of the bandwidth–efficiency trade-off for second-harmonic generation (SHG) achieved by the formation of two-dimensional quadratic spatial solitons versus the more conventional method of gentle focusing in the middle of a nonlinear crystal is presented. Numerical simulations for type II SHG in potassium titanyl phosphate with constant wave-vector mismatch show that the 3-dB drop-off in SHG conversion efficiency can be many multiples of π in detuning from the phase-match condition over a large range of walk-off angles and focal positions.

© 1998 Optical Society of America

OCIS Codes
(140.3300) Lasers and laser optics : Laser beam shaping
(190.0190) Nonlinear optics : Nonlinear optics
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.5530) Nonlinear optics : Pulse propagation and temporal solitons

Citation
M. Ohkawa, R. A. Fuerst, and G. I. Stegeman, "Bandwidth enhancement of second-harmonic generation with quadratic spatial-soliton generation versus conventional methods," J. Opt. Soc. Am. B 15, 2769-2772 (1998)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-15-11-2769

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