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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 24, Iss. 6 — Mar. 15, 1999
  • pp: 394–396

Second-harmonic generation in a microradius LiNbO3 cylinder with a quasi-elliptical cross section

J. Yu, K. Giulietti, F. Sourgen, A. Ross, J. P. Wolf, M. Ferriol, G. Foulon, C. Goutaudier, M. T. Cohen-Adad, and G. Boulon  »View Author Affiliations


Optics Letters, Vol. 24, Issue 6, pp. 394-396 (1999)
http://dx.doi.org/10.1364/OL.24.000394


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Abstract

LiNbO3 single-crystal fibers with diameters of 63 and 230 μm were grown, and the second-harmonic-generation (SHG) process was studied with femtosecond laser pulses perpendicularly focused to the fiber. SHG occurred without collinear phase matching, leading to wavelength-independent overall conversion efficiency, unlike in a bulk crystal. The scattering pattern of the second harmonic exhibited an intense forward peak and an almost-uniform, less-intense distribution around the fiber, owing to trapping in high-Q whispering modes. Implementation of a second-order autocorrelator with the 63-μm fiber demonstrates its application potential.

© 1999 Optical Society of America

OCIS Codes
(190.2620) Nonlinear optics : Harmonic generation and mixing
(290.0290) Scattering : Scattering
(320.2250) Ultrafast optics : Femtosecond phenomena
(320.7110) Ultrafast optics : Ultrafast nonlinear optics

Citation
J. Yu, K. Giulietti, F. Sourgen, A. Ross, J. P. Wolf, M. Ferriol, G. Foulon, C. Goutaudier, M. T. Cohen-Adad, and G. Boulon, "Second-harmonic generation in a microradius LiNbO3 cylinder with a quasi-elliptical cross section," Opt. Lett. 24, 394-396 (1999)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-24-6-394

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