Radio-frequency-discharge-excited carbon monoxide lasers

Howard J. Baker; Alan D. Colley; Denis R. Hall; N. Rodrigues; H. Zhao

doi:10.1117/12.144547

4 May 1993 Radio-frequency-discharge-excited carbon monoxide lasers

Howard J. Baker, Alan D. Colley, Denis R. Hall, N. Rodrigues, H. Zhao

Proceedings Volume 1810, 9th International Symposium on Gas Flow and Chemical Lasers; (1993) https://doi.org/10.1117/12.144547
Event: Ninth International Symposium on Gas Flow and Chemical Lasers, 1992, Heraklion, Greece

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.

Citation Download Citation

Howard J. Baker, Alan D. Colley, Denis R. Hall, N. Rodrigues, and H. Zhao "Radio-frequency-discharge-excited carbon monoxide lasers", Proc. SPIE 1810, 9th International Symposium on Gas Flow and Chemical Lasers, (4 May 1993); https://doi.org/10.1117/12.144547

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