Beam optimization of a TEA-CO2 laser

Tobias Gross; Detlev Ristau; Gordon Wallas; Gabriel Dumitru; Dan G. Sporea; Clementina A. Timus

doi:10.1117/12.312754

2 July 1998 Beam optimization of a TEA-CO₂ laser

Tobias Gross, Detlev Ristau, Gordon Wallas, Gabriel Dumitru, Dan G. Sporea, Clementina A. Timus

Proceedings Volume 3405, ROMOPTO '97: Fifth Conference on Optics; (1998) https://doi.org/10.1117/12.312754
Event: ROMOPTO '97: Fifth Conference on Optics, 1997, Bucharest, Romania

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.

Citation Download Citation

Tobias Gross, Detlev Ristau, Gordon Wallas, Gabriel Dumitru, Dan G. Sporea, and Clementina A. Timus "Beam optimization of a TEA-CO₂ laser", Proc. SPIE 3405, ROMOPTO '97: Fifth Conference on Optics, (2 July 1998); https://doi.org/10.1117/12.312754

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