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Proceedings Paper

Mass Spectrometric Analysis Of High-Power Closed-Cycle CO Laser
Author(s): Hirotaka Kanazawa; Naohito Yamaguchi; Tatsuji Taira
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Paper Abstract

The mass spectrometric analysis was performed for a closed-cycle high-power CO laser to study the influence of gas composition on the discharge characteristics and the laser performance, and to measure the change of gas composition during a continuous operation. The addition of a small amount of 02 (0.2-0.3%) in the laser gas (CO/N2/He=4/16/80) enhanced the maximum discharge input power restricted by discharge instability, which enabled the maximum laser output power to increase. The addition of CO2 caused the drastic decrease of output power. During a continuous operation the CO concentration decreased, on the contrary, the CO2 concentration increased. At the same time the output power decreased monotonously. The prsence of 02 prevents the deposition of soot on the surface of electrodes, but accelerates the formation of CO2. The long time operation about 1 hour at the output power of 2 kW was firstly accomplished without a gas exchange.

Paper Details

Date Published: 20 June 1989
PDF: 8 pages
Proc. SPIE 1031, 7th Intl Symp on Gas Flow and Chemical Lasers, (20 June 1989); doi: 10.1117/12.950507
Show Author Affiliations
Hirotaka Kanazawa, Ishikawajima-Harima Heavy Industries Co. (Japan)
Naohito Yamaguchi, Ishikawajima-Harima Heavy Industries Co. (Japan)
Tatsuji Taira, Ishikawajima-Harima Heavy Industries Co. (Japan)


Published in SPIE Proceedings Vol. 1031:
7th Intl Symp on Gas Flow and Chemical Lasers

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