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Proceedings Paper

Q-switched regime of 3-μm erbium lasers
Author(s): Serban Georgescu; Voicu Lupei; Claudiu Hapenciuc
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Paper Abstract

A mathematical model, based exclusively on spectroscopic data concerning radiative, non-radiative, and energy transfer processes, is proposed and used to simulate the Q-switch regime of three-micron Er:YAG laser. The connection between the main energy transfer mechanisms that make possible generation on the self-saturated transition 4I11/2 yields 4I13/2 (up- conversion from 4I13/2 and 4I11/2, cross- relaxation from 4S3/2) and the giant pulse characteristics is discussed. The radiative as well as non- radiative losses during optical pumping and giant pulse generation are defined and evaluated. A particular attention is given to FTIR Q-switch which demonstrated real qualities for 3- micrometers Erbium lasers. The reasons responsible for experimental performances of Q-switched Er:YAG lasers inferior to those predicted by the mathematical modeling are analyzed.

Paper Details

Date Published: 2 July 1998
PDF: 8 pages
Proc. SPIE 3405, ROMOPTO '97: Fifth Conference on Optics, (2 July 1998); doi: 10.1117/12.312647
Show Author Affiliations
Serban Georgescu, National Institute for Laser, Plasma, and Radiation Physics (Romania)
Voicu Lupei, National Institute for Laser, Plasma, and Radiation Physics (Romania)
Claudiu Hapenciuc, National Institute for Laser, Plasma, and Radiation Physics (Romania)


Published in SPIE Proceedings Vol. 3405:
ROMOPTO '97: Fifth Conference on Optics
Valentin I. Vlad; Dan C. Dumitras, Editor(s)

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