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Proceedings Paper

High-power gas dynamically cooled CO laser with unstable resonator
Author(s): Martin Schellhorn; Hartwig von Buelow
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Paper Abstract

The RF-discharge region of a gasdynamically cooled carbon monoxide laser has been optimized. Thereby the laser power was increased from 2.5 kW to a value of 7 kW (stable resonator) with an efficiency of 14%. An unstable resonator has been applied to improve the beam quality resulting in a 4.7 kW laser beam with a total divergence of 2.5 mrad. The beam quality is strongly influenced by water vapor absorption in the beam delivery system. The design of the RF-excited laser will be described and experimental results will be presented.

Paper Details

Date Published: 31 March 1995
PDF: 6 pages
Proc. SPIE 2502, Gas Flow and Chemical Lasers: Tenth International Symposium, (31 March 1995); doi: 10.1117/12.204882
Show Author Affiliations
Martin Schellhorn, Deutsch-Franzoesisches Forschungsinstitut (France)
Hartwig von Buelow, DLR (Germany)


Published in SPIE Proceedings Vol. 2502:
Gas Flow and Chemical Lasers: Tenth International Symposium
Willy L. Bohn; Helmut Huegel, Editor(s)

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