Spatial and temporal characteristics of an industrial cw CO2 laser beam

Grazyna T. Rabczuk; M. Sawczak; Gerard Sliwinski

doi:10.1117/12.413975

25 January 2001 Spatial and temporal characteristics of an industrial cw CO₂ laser beam

Grazyna T. Rabczuk, M. Sawczak, Gerard Sliwinski

Proceedings Volume 4184, XIII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference; (2001) https://doi.org/10.1117/12.413975
Event: XIII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference, 2000, Florence, Italy

Abstract

The spatial and temporal characteristics of the laser beam extracted from the industrial high power cw CO2 laser are investigated experimentally and analysed. The beam properties are compared for two optical stable cavity configurations characterised by the different values of the Fresnel number. It is found that the beam shape fluctuations, observed for both cavities, are mainly due to the mechanical vibrations of the laser construction. The cavity of the lower Fresnel number emits the beam ofbetter quality and provides better focussing condition in the processing zone.

Citation Download Citation

Grazyna T. Rabczuk, M. Sawczak, and Gerard Sliwinski "Spatial and temporal characteristics of an industrial cw CO₂ laser beam", Proc. SPIE 4184, XIII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference, (25 January 2001); https://doi.org/10.1117/12.413975

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