Beam characterization of an industrial CO2 laser: results of a workshop within the EUREKA project EU-1269 "CHOCLAB"

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

doi:10.1117/12.259912

20 November 1996 Beam characterization of an industrial CO₂ laser: results of a workshop within the EUREKA project EU-1269 "CHOCLAB"

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

Author Affiliations +

Proceedings Volume 2870, Third International Workshop on Laser Beam and Optics Characterization; (1996) https://doi.org/10.1117/12.259912
Event: Third International Workshop on Laser Beam and Optics Characterization, 1996, Quebec City, Canada

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.

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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, and Norbert Wolf "Beam characterization of an industrial CO₂ laser: results of a workshop within the EUREKA project EU-1269 "CHOCLAB"", Proc. SPIE 2870, Third International Workshop on Laser Beam and Optics Characterization, (20 November 1996); https://doi.org/10.1117/12.259912

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