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Proceedings Paper

Nd:YAG laser continuous wave-pumped Q-switched by hybrid passive-active methods
Author(s): Traian Dascalu; Constanta Dascalu; Nicolaie A. Pavel
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Paper Abstract

The output characteristics of a continuous-wave flash lamp pumped Nd:YAG laser, passively Q-switched by Cr4+:YAG are reported. In order to control the small-signal transmission of the passive Q-switch, a new method, which made use of a miniature laser placed out of the resonator, is described theoretically and proved experimentally. Further, the combination of a Cr4+:YAG passive Q-switch and an acoustooptic Q- switch that work together in a Nd:YAG CW pumped laser was investigated. With a two-rod resonator and a Cr4+:YAG crystal as saturable absorber, an average laser output power over 180W was reached. The pulse-to-pulse stability was 1%. Folded resonator was used in order to obtain intracavity second harmonic generation in active and passive Q-switch mode.

Paper Details

Date Published: 29 June 2001
PDF: 10 pages
Proc. SPIE 4430, ROMOPTO 2000: Sixth Conference on Optics, (29 June 2001); doi: 10.1117/12.432899
Show Author Affiliations
Traian Dascalu, Ctr. de Investigaciones en Optica (Mexico)
Constanta Dascalu, Univ. Politehnica Bucharest (Romania)
Nicolaie A. Pavel, Institute for Molecular Science (Japan)

Published in SPIE Proceedings Vol. 4430:
ROMOPTO 2000: Sixth Conference on Optics
Valentin I. Vlad, Editor(s)

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