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Proceedings Paper

Fast axial flow 25 kW CO2-laser with unstable resonator for industrial applications
Author(s): Uwe Habich; Uwe-Klaus Jarosch; Heiko Maly; Rudolph Meyer; Peter Loosen; Norbert Wolf; Thilo Beck; Christoph Hertzler; Reinhard Wollermann-Windgasse
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Paper Abstract

A high-power industrial carbon-dioxide laser with fast axial gas-flow was set up with eight radio-frequency-excited discharge tubes and four turbo-blowers. With an unstable resonator the maximum output power is 25 kW. The gas flow and the electrodes for the rf-excitation were shaped carefully to achieve homogeneous gas discharges and thus an active medium that introduces only minor aberrations into the beam of the unstable resonator. The beam propagation behavior near focus was studied for a diagnostic optics with long focal length and for processing optics with shorter focal lengths, respectively. Various welding applications in mild steel and stainless steel were carried out.

Paper Details

Date Published: 4 April 1997
PDF: 4 pages
Proc. SPIE 3092, XI International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference, (4 April 1997); doi: 10.1117/12.270209
Show Author Affiliations
Uwe Habich, Fraunhofer-Institut fuer Lasertechnik (Germany)
Uwe-Klaus Jarosch, Fraunhofer-Institut fuer Lasertechnik (Germany)
Heiko Maly, Fraunhofer-Institut fuer Lasertechnik (Germany)
Rudolph Meyer, Fraunhofer-Institut fuer Lasertechnik (Germany)
Peter Loosen, Fraunhofer-Institut fuer Lasertechnik (Germany)
Norbert Wolf, Fraunhofer-Institut fuer Lasertechnik (Germany)
Thilo Beck, Trumpf Laser-Forschungs- und Entwicklungsgesellschaft (Germany)
Christoph Hertzler, Trumpf Laser-Forschungs- und Entwicklungsgesellschaft (Germany)
Reinhard Wollermann-Windgasse, Trumpf Laser-Forschungs- und Entwicklungsgesellschaft (Germany)

Published in SPIE Proceedings Vol. 3092:
XI International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference
Denis R. Hall; Howard J. Baker, Editor(s)

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