Pulsed blue-light generation by the frequency doubling of the 4F3/2 to 4I9/2 transition in Nd:YAG and Nd:YAlO3 |
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| Authors: | Y Lutz D Rytz C Gaudillat |
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| Institution: | (1) Institut Franco-Allemand de Recherches de Saint-Louis, 5, rue du Général Cassagnou, B.P. 34, 68301 Saint-Louis Cedex, France (Fax: +33-3/8969-5077, E-mail: ylutz@hotmail.com), FR;(2) FEE – Forschungsinstitut für Edelsteine/Edelmetalle GmbH, Struthstrasse 2, 55743 Idar-Oberstein, Germany, DE |
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| Abstract: | We report on the frequency doubling of Q-switchedNd:YAG and Nd:YAlO3 lasers emitting at 946 and 930 nm, respectively (4F3/2 to 4I9/2 transition). The neodymium-doped laser host crystals were excited with a flashlamp-pumped Cr:LiSAF laser operating in a free-running
mode. Blue-light pulses were obtained at both 473 nm (9 mJ, 25 ns FWHM) and 465 nm (4.4 mJ, 35 ns FWHM) by using a potassium
niobate crystal as an extra-cavity frequency doubler. The second-harmonic generation conversion efficiencies reached 53% and
31%, respectively.
Received: 23 June 1999 / Revised version: 8 August 1999 / Published online: 3 November 1999 |
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| Keywords: | PACS: 42 65 Kg 42 70 Hj 42 72 Bj |
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