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Proceedings Paper

Basic enhancement of the global efficiency of frequency doubling devices for the one-micron continuous-wave Nd:YAG laser emission
Author(s): Voicu Lupei; Nicolaie A. Pavel; Takunori Taira
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Paper Abstract

The possibility of basic enhancement of the global efficiency of frequency-doubling devices for the one-micron continuous-wave Nd lasers by direct pumping into the emitting level and by the use of concentrated laser materials is discussed. This possibility is demonstrated for 1.0 and 2.4-at.% Nd:YAG crystals pumped by a Ti:Sapphire laser at 885 nm. A slope efficiency of 0.79 in absorbed power was obtained for the 1064 nm emission of the 1-at.% Nd:YAG. The effect of enhancement of intracavity emission on the second harmonic emission is manifested in a drastically reduction of emission threshold and in an enhanced dependence on the absorbed power. The use of concentrated Nd:YAG crystals enables a better use of the pump power and increases the overall efficiency of the frequency-doubling devices.

Paper Details

Date Published: 21 October 2004
PDF: 6 pages
Proc. SPIE 5581, ROMOPTO 2003: Seventh Conference on Optics, (21 October 2004); doi: 10.1117/12.582813
Show Author Affiliations
Voicu Lupei, Institute of Atomic Physics (Romania)
Nicolaie A. Pavel, Institute of Atomic Physics (Romania)
Takunori Taira, Institute for Molecular Science (Japan)

Published in SPIE Proceedings Vol. 5581:
ROMOPTO 2003: Seventh Conference on Optics
Valentin I. Vlad, Editor(s)

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