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Proceedings Paper

Radio-frequency-discharge-excited carbon monoxide lasers
Author(s): Howard J. Baker; Alan D. Colley; Denis R. Hall; N. Rodrigues; H. Zhao
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Paper Abstract

The use of radio frequency discharges for excitation of two types of carbon monoxide laser is discussed, with emphasis on the attainment of both good beam quality and operation at relatively high temperature. The first laser type uses fast axial flow in circular cross-section discharges, producing power output comparable to similarly dimensioned carbon dioxide lasers at cryogenic temperatures. Problems with obtaining good beam quality in this type of laser, related to the wavelength and high mass flow requirements, are identified. The second laser type uses stationary gas in a slab waveguide arrangement, and has been shown to operate with good efficiency nearer to ambient temperature than the fast flow device. Good beam quality is being sought by the use of waveguide-unstable resonators.

Paper Details

Date Published: 4 May 1993
PDF: 6 pages
Proc. SPIE 1810, 9th International Symposium on Gas Flow and Chemical Lasers, (4 May 1993); doi: 10.1117/12.144547
Show Author Affiliations
Howard J. Baker, Heriot-Watt Univ. (United Kingdom)
Alan D. Colley, Heriot-Watt Univ. (United Kingdom)
Denis R. Hall, Heriot-Watt Univ. (United Kingdom)
N. Rodrigues, Heriot-Watt Univ. (United Kingdom)
H. Zhao, Heriot-Watt Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 1810:
9th International Symposium on Gas Flow and Chemical Lasers
Costas Fotakis; Costas Kalpouzos; Theodore G. Papazoglou, Editor(s)

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