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Proceedings Paper

Second-harmonic generation with free-running Nd:YAG laser
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Paper Abstract

First results and analysis of second harmonic generation with a Nd:YAG laser working in the long pulse, free running mode are presented in this paper. Second harmonic generation conversion efficiencies of up to 17.5% and pulse powers of 162W have been generated with a free running Nd:YAG laser and a KTP non-linear crystal. The conversion efficiency is limited by a saturation effect and optical damage occurring at ~50 times lower peak intensities than in the Q-switch mode. The saturation and damage mechanism involves creation of temporary 'color centers' induced by the second harmonic radiation and subsequent increased fundeamental wave absorption.

Paper Details

Date Published: 14 November 2003
PDF: 7 pages
Proc. SPIE 5147, ALT'02 International Conference on Advanced Laser Technologies, (14 November 2003); doi: 10.1117/12.537465
Show Author Affiliations
Sebastian Favre, Ecole Polytechnique Federale de Lausanne (Switzerland)
Thomas C. Sidler, Ecole Polytechnique Federale de Lausanne (Switzerland)
Rene-Paul Salathe, Ecole Polytechnique Federale de Lausanne (Switzerland)


Published in SPIE Proceedings Vol. 5147:
ALT'02 International Conference on Advanced Laser Technologies
Heinz P. Weber; Vitali I. Konov; Thomas Graf, Editor(s)

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