März M, Oestreicher W (1994)
Publication Type: Journal article
Publication year: 1994
Book Volume: 27
Pages Range: 470-474
Journal Issue: 3
DOI: 10.1088/0022-3727/27/3/007
A microwave-excited (2.45 GHz), diffusion-cooled CO2 laser, capable of operating in a quasi-cw mode, has been developed. By separating the discharge structure from the feeding RF waveguide and using distributed coupling, previous problems with local contracting discharges could be surmounted. For effective diffusion cooling a planar 1.9 mm high discharge channel was used, a structure which easily allows area scaling of laser output power. Two discharge channel designs (metal/glass and all ceramic) were investigated, differing mainly in thermal conductivity and waveguide losses for the 10.6 mu m laser radiation. A conventional magnetron for microwave ovens was used as microwave source. System design and extensive measuring results are presented. With a first prototype non-optimized in gas mixture, optical resonator and waveguide surface quality laser output power above 20 W was obtained with an efficiency of about 10%. © 1994 IOP Publishing Ltd.
APA:
März, M., & Oestreicher, W. (1994). Microwave excitation of a diffusion-cooled CO2 laser. Journal of Physics D: Applied Physics, 27(3), 470-474. https://dx.doi.org/10.1088/0022-3727/27/3/007
MLA:
März, Martin, and Wolfgang Oestreicher. "Microwave excitation of a diffusion-cooled CO2 laser." Journal of Physics D: Applied Physics 27.3 (1994): 470-474.
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