Mass Spectrometric Analysis Of High-Power Closed-Cycle CO Laser

Hirotaka Kanazawa; Naohito Yamaguchi; Tatsuji Taira

doi:10.1117/12.950507

20 June 1989 Mass Spectrometric Analysis Of High-Power Closed-Cycle CO Laser

Hirotaka Kanazawa, Naohito Yamaguchi, Tatsuji Taira

Proceedings Volume 1031, 7th Intl Symp on Gas Flow and Chemical Lasers; (1989) https://doi.org/10.1117/12.950507
Event: 7th International Symposium on Gas Flow and Chemical Lasers, 1988, Vienna, Austria

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.

Citation Download Citation

Hirotaka Kanazawa, Naohito Yamaguchi, and Tatsuji Taira "Mass Spectrometric Analysis Of High-Power Closed-Cycle CO Laser", Proc. SPIE 1031, 7th Intl Symp on Gas Flow and Chemical Lasers, (20 June 1989); https://doi.org/10.1117/12.950507

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