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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 25, Iss. 18 — Sep. 15, 2000
  • pp: 1373–1375

Efficient energy conversion for cubic third-harmonic generation that is phase matched in KTiOPO4

J. P. Fève, B. Boulanger, and Y. Guillien  »View Author Affiliations


Optics Letters, Vol. 25, Issue 18, pp. 1373-1375 (2000)
http://dx.doi.org/10.1364/OL.25.001373


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Abstract

We demonstrate, for the first time to our knowledge, that efficient third-harmonic generation can be achieved with a cubic contribution much larger than the quadratic processes. An energy-conversion efficiency of 2.4% is achieved for cubic third-harmonic generation that is phase matched along the x axis of a KTiOPO4 crystal by use of a picosecond fundamental laser emitting at 1618 nm. The associated cascading processes are only 10% of the pure cubic interaction, which is very suitable for study of the specific quantum optical correlations. Calculations of the third-harmonic generation conversion efficiency with respect to group-velocity dispersion and to the longitudinal Gaussian beam profile account well for our experimental results.

© 2000 Optical Society of America

OCIS Codes
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes

Citation
J. P. Fève, B. Boulanger, and Y. Guillien, "Efficient energy conversion for cubic third-harmonic generation that is phase matched in KTiOPO4," Opt. Lett. 25, 1373-1375 (2000)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-25-18-1373

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