High-power gas dynamically cooled CO laser with unstable resonator

Martin Schellhorn; Hartwig von Buelow

doi:10.1117/12.204882

31 March 1995 High-power gas dynamically cooled CO laser with unstable resonator

Martin Schellhorn, Hartwig von Buelow

Proceedings Volume 2502, Gas Flow and Chemical Lasers: Tenth International Symposium; (1995) https://doi.org/10.1117/12.204882
Event: Gas Flow and Chemical Lasers: Tenth International Symposium, 1994, Friedrichshafen, Germany

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.

Citation Download Citation

Martin Schellhorn and Hartwig von Buelow "High-power gas dynamically cooled CO laser with unstable resonator", Proc. SPIE 2502, Gas Flow and Chemical Lasers: Tenth International Symposium, (31 March 1995); https://doi.org/10.1117/12.204882

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