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Proceedings Paper

Beam characterization of an industrial CO2 laser: results of a workshop within the EUREKA project EU-1269 "CHOCLAB"
Author(s): H. Bartels; Peter Boerger; Friedhelm Dorsch; Bernd Eppich; Uwe Habich; Ruediger Maestle; Holger Muentz; Wilfried Plass; R. Pohl; U. Quattelbaum; Marcus Scholl; Laura Serri; H. Staubach; Emanuele S.E. Stucchi; C. Wild; Norbert Wolf
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Paper Abstract

Within the EUREKA-project 'CHOCLAB' a workshop was organized, where several partners analyzed the beam of an industrial carbon-dioxide laser device. The goal was to qualify the ISO 11146 standard by using different measurement techniques. This paper compares the results of the determination of the beam propagation factor and beam widths. The following test methods for measuring the beam width were applied: (1) determination of the power density distribution with a rotating pinhole device and subsequent evaluation of beam widths, (2) determination of the power density with a pyroelectric camera and subsequent evaluation of beam widths, (3) moving knife edge method. For the measured data various methods of evaluation were used. These include data processing with different filters, evaluation of averaged power density distributions as well as different algorithms for curve fitting. Despite the different methods of measurement and evaluation the results showed reasonable agreement. This proves the applicability of the ISO 11146 standard to an industrial carbon-dioxide laser device.

Paper Details

Date Published: 20 November 1996
PDF: 8 pages
Proc. SPIE 2870, Third International Workshop on Laser Beam and Optics Characterization, (20 November 1996); doi: 10.1117/12.259912
Show Author Affiliations
H. Bartels, Fraunhofer Institut fuer Lasertechnik ILT (Germany)
Peter Boerger, Prometec GmbH (Germany)
Friedhelm Dorsch, Jenoptik Laserdiode GmbH (Germany)
Bernd Eppich, Laser- und Medizin-Technologie GmbH Berlin (Germany)
Uwe Habich, Fraunhofer-Institut fuer Lasertechnik (Germany)
Ruediger Maestle, Institut fuer Strahlwerkzeuge/Univ. Stuttgart (Germany)
Holger Muentz, Fraunhofer-Institut fuer Lasertechnik (Germany)
Wilfried Plass, Institut fuer Strahlwerkzeuge/Univ. Stuttgart (Germany)
R. Pohl, Prometec GmbH (Germany)
U. Quattelbaum, Fraunhofer-Institut fur Lasertechnik (Germany)
Marcus Scholl, Fraunhofer-Institut fuer Lasertechnik (Germany)
Laura Serri, CISE SpA (Italy)
H. Staubach, Fraunhofer-Institut fuer Lasertechnik (Germany)
Emanuele S.E. Stucchi, CISE SpA (Italy)
C. Wild, Trumpf Lasertechnik GmbH (Germany)
Norbert Wolf, Fraunhofer-Institut fuer Lasertechnik (Germany)

Published in SPIE Proceedings Vol. 2870:
Third International Workshop on Laser Beam and Optics Characterization
Michel Morin; Adolf Giesen, Editor(s)

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