A computer model of a transverse discharge cw CO laser |
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Authors: | M. Iyoda S. Sato H. Saito T. Fujioka M. Akiyama |
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Affiliation: | (1) Department of Computer Science, Chiba Institute of Technology, 2-17-1 Tsudanuma, 275 Narashino, Japan;(2) Laser Laboratory, Industrial Research Institute, 1201 Takada, 277 Kashiwa, Japan;(3) Department of Nuclear Engineering, University of Tokyo, 7-3-1 Hongo, 113 Bunkyo, Japan |
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Abstract: | A kinetic model has been developed for the investigation of the novel performance of a CO laser, on which efficient extraction of laser power was obtained by exciting a subsonic gas mixture of CO/N2/He/O2 through transverse dc discharge. Kinetic equations for direct excitation by electron impact, V-V and V-R/T energy transfer, and stimulated emission are coupled with a semi-one-dimensional flow model. Careful consideration is devoted especially to the V-V transfer process of CO–N2 and N2–N2. The laser power was calculated by a constant gain method. The laser output performance, examined as a function of gas mixture ratio, temperature, flow velocity, and discharge current, was in good agreement with the experiment. |
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Keywords: | 42.55. Em |
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