Generation of tunable green radiation in bulk periodically poled KTiOPO4

Year: 2002

Authors: Zeppini P., Cancio P., Giusfredi G., Mazzotti D., Arie A., Rosenman G., De Natale P.

Autors Affiliation: European Laboratory for Nonlinear Spectroscopy, and Department of Physics, University of Firenze, Largo E. Fermi, 2 I-50125 Firenze, Italy; Istituto Nazionale di Ottica Applicata, Largo E. Fermi, 6 I-50125 Firenze, Italy; Department of Electrical Engineering Physical Electronics, Faculty of Engineering, Tel Aviv University, 69978 Tel Aviv, Israel

Abstract: We report a characterisation of a flux-grown periodically poled KTiOPO4 crystal used for second-harmonic generation in a diode laser source, that operates with fundamental radiation tunable around 1083 nm wavelength. The conversion efficiency is measured for the three different grating periods of the crystal, as a function of input wavelength, crystal temperature and fundamental power. The measurements were fitted to the theoretical model of Boyd and Kleinman for frequency conversion of focused Gaussian beams. This enabled us to determine the temperature and wavelength dependence of the difference in refractive index between the (C) 2002 Elsevier Science Ltd. All rights reserved.


Volume: 37 (5)      Pages from: 553  to: 563

More Information: We thank M. Inguscio for useful suggestions. A. Arie acknowledges financial support from the European Union under Contract No. ERB FMGECT950017 and Contract No. HPRICT1999-00111. This work was partially supported by Istituto Nazionale di Geofisica e Vulcanologia and Gruppo Nazionale di Vulcanologia, Italy.
KeyWords: Diffraction gratings; Nonlinear optics; Potassium compounds; Radiation; Refractive index; Second harmonic generation; Semiconductor lasers; Temperature measurement, Periodically poled (PP) crystals, Crystals
DOI: 10.1016/S0143-8166(01)00138-5

Citations: 6
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