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Proceedings Paper

Er:YAG laser giant-pulse generation
Author(s): Helena Jelínková; Michal Nemec; Jan Sulc; Miroslav Cech; Maris Ozolinsh
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Paper Abstract

Three possibilities of mid-infrared Er:YAG lasers Q-switching were investigated: mechanical and two electro-optical ones. The mechanical method of Q-switching was proved by using of a rotating mirror placed inside the resonator; Pockels or Kerr cells were used for the electro-optical Q-switching. The Pockels cell was constructed on the basis of the Brewster angle cut LiNb03 crystal; the Kerr cell used a ceramic PLZT material. In all the three cases the Er:YAG laser resonator was plan parallel and it consisted of the rear copper mirror and output coupler with 50-70% reflectivity. The Er:YAG crystal was pumped by one xenon flashlamp in a single elliptical silver coated cavity. The generated giant pulse output parameters were the following: the length was measured in the range of 200-400 ns; the output energy was from 10 mJ up to 30 rnJ. With the rotating mirror the output was stable in a wide range ofthe switching interval. All the three cases can be used in applications. The particular Q-switch can be chosen from the point of view of output parameters and construction requirements.

Paper Details

Date Published: 15 October 2002
PDF: 6 pages
Proc. SPIE 4903, Laser Florence 2001: A Window on the Laser Medicine World, (15 October 2002); doi: 10.1117/12.486604
Show Author Affiliations
Helena Jelínková, Czech Technical Univ. (Czech Republic)
Michal Nemec, Czech Technical Univ. (Czech Republic)
Jan Sulc, Czech Technical Univ. (Czech Republic)
Miroslav Cech, Czech Technical Univ. (Czech Republic)
Maris Ozolinsh, Univ. of Latvia (Latvia)


Published in SPIE Proceedings Vol. 4903:
Laser Florence 2001: A Window on the Laser Medicine World
Leonardo Longo; Alfons G. Hofstetter; Mihail-Lucian Pascu; Wilhelm R. A. Waidelich, Editor(s)

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