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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 13, Iss. 4 — Apr. 1, 1996
  • pp: 649–655

Effects of cubic nonlinearity on frequency doubling of high-power laser pulses

T. Ditmire, A. M. Rubenchik, D. Eimerl, and M. D. Perry  »View Author Affiliations


JOSA B, Vol. 13, Issue 4, pp. 649-655 (1996)
http://dx.doi.org/10.1364/JOSAB.13.000649


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Abstract

The effects of the phase mismatch due to cubic nonlinearity in the equations for second-harmonic generation are investigated. We show that the phase mismatch induced by the nonlinear refractive index of a doubling crystal can dramatically reduce the conversion efficiency of high-peak-power laser pulses. Simple, analytic expressions are derived for the conversion efficiency of cw radiation and for the estimation of the dispersion in the nonlinear refractive index of the doubling crystal, which is quite important in the determination of the magnitude of the nonlinear effects on maximum conversion. The consequences that these nonlinearities have on the frequency doubling of ultrashort (≤100 fs) pulses, including the additional effects of group-velocity walk-off between the pulses, are then numerically calculated.

© 1996 Optical Society of America

Citation
T. Ditmire, A. M. Rubenchik, D. Eimerl, and M. D. Perry, "Effects of cubic nonlinearity on frequency doubling of high-power laser pulses," J. Opt. Soc. Am. B 13, 649-655 (1996)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-13-4-649

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