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Proceedings Paper

Power deposition characteristics of a 40-MHz RF-excited slab CO2 laser
Author(s): Yoshio Ishii; Kazuhiro Watanabe
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Paper Abstract

In this study, power deposition characteristics of the 40MHz slab excitation carbon dioxide laser has been carefully investigated in which the relationship between the filled gas pressures and input power densities have been obtained so as to sustain stable α discharges. As a result, a laser output power of 60-90W was obtained with a corresponding conversion efficiency as high as 9.5-10% under the condition of 0.6 -1 kW discharge input into Xe-added 1:1:8 Helium-rich gas filling which corresponds to 22-37 W/cc of the input power density. The obtained characteristics in this work shows that relatively high conversion efficiency can be realized with stable α discharge by choosing the optimum operational gas pressures and power input densities under the use of the Xe(2.5%)-added, Helium-rich gas mixture(1:1:8).

Paper Details

Date Published: 10 November 2003
PDF: 4 pages
Proc. SPIE 5120, XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, (10 November 2003); doi: 10.1117/12.515468
Show Author Affiliations
Yoshio Ishii, Soka Univ. (Japan)
Kazuhiro Watanabe, Soka Univ. (Japan)

Published in SPIE Proceedings Vol. 5120:
XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers
Krzysztof M. Abramski; Edward F. Plinski; Wieslaw Wolinski, Editor(s)

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