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Proceedings Paper

Laser Medium/ Resonator Field Interaction Of Fast Axial Flow CO[sub]2[/sub]-Lasers
Author(s): O. Maerten; G. Herziger; R. Klein; P. Loosen
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Paper Abstract

The temporal behaviour of the laser output characteristics has great influence on the quality and reproducibility of laser material processing. Changes in the transversal intensity distribution and fluctuations of the laser power during machining cause a decrease in processing quality. The interaction of laser medium with radiation field may be responsible for irregular behaviour of the laser beam parameters 1,2. In this paper experimental results concerning the influence of the active medium on the intensity distribution in the laser field and on the output power of the laser are presented. We have measured the stationary radial distribution of small signal gain and refractive index and in addition the instationary disturbance of the radiation field with fluctuations of the refractive index in a turbulent gas flow.

Paper Details

Date Published: 22 September 1987
PDF: 7 pages
Proc. SPIE 0801, High Power Lasers: Sources, Laser-Material Interactions, High Excitations, and Fast Dynamics, (22 September 1987); doi: 10.1117/12.941220
Show Author Affiliations
O. Maerten, Fraunhofer Institut f. Lasertechnik (Germany)
G. Herziger, Fraunhofer Institut f. Lasertechnik (Germany)
R. Klein, Fraunhofer Institut f. Lasertechnik (Germany)
P. Loosen, Fraunhofer Institut f. Lasertechnik (Germany)


Published in SPIE Proceedings Vol. 0801:
High Power Lasers: Sources, Laser-Material Interactions, High Excitations, and Fast Dynamics
Ernst-Wolfgang Kreutz; A. Quenzer; Dieter Schuoecker, Editor(s)

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