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Proceedings Paper

Beam optimization of a TEA-CO2 laser
Author(s): Tobias Gross; Detlev Ristau; Gordon Wallas; Gabriel Dumitru; Dan G. Sporea; Clementina A. Timus
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Paper Abstract

The paper describes the methods used to adapt an industrial TEA- CO2 laser to the requirements of the ISO standard 11 254-2 for a laser induced damage threshold experimental facility. The goals were to improve the pulse energy stability and the laser beam spatial profile and the methods were: (1) finding the best discharge voltage; (2) adapting the laser cavity, (3) using suitable apertures. There is also presented the experimental set- up for beam characterization, which included a laser beam profiler (a line of 60 pyroelectric detectors), an energy-meter to monitor the pulse energies and KCl optical components for beam splitting and beam guiding. Every beam distribution was regarded as a linear combination of normalized Gauss-Hermite functions and the fitting algorithm allows the calculation of the coefficients of this combination.

Paper Details

Date Published: 2 July 1998
PDF: 7 pages
Proc. SPIE 3405, ROMOPTO '97: Fifth Conference on Optics, (2 July 1998); doi: 10.1117/12.312754
Show Author Affiliations
Tobias Gross, Laser Zentrum Hannover eV (Germany)
Detlev Ristau, Laser Zentrum Hannover eV (Germany)
Gordon Wallas, Laser Zentrum Hannover eV (Germany)
Gabriel Dumitru, National Institute for Laser, Plasma, and Radiation Physics (Switzerland)
Dan G. Sporea, National Institute for Laser, Plasma, and Radiation Physics (Romania)
Clementina A. Timus, 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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