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Proceedings Paper

Stabilized cw CO2(CO) laser with automatic tuning over oscillation lines for monitoring of air pollutants
Author(s): Vadim A. Gorobets; Vladimir O. Petukhov; Sergei Y. Tochitsky; V. V. Churakov
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Paper Abstract

In the paper, a cw CO2 (CO) laser with automatic tuning over oscillation lines and stabilized output parameters is described. The transfer of oscillation from carbon dioxide to carbon monoxide only takes place when the series-produced sealed-off active element GL-501 is replaced by the constructively identical element GL-509. The laser oscillates in the 9.1 - 11.3 micrometers range (100 vibrational-rotational lines of the 0001-1000(0200) band and more than 20 lines of the 0111-1110 band's P-branch of the CO2 molecule when GL-501 is used) and in the 5.2 - 6.4 micrometers range (more than 100 vibrational-rotational lines of the CO molecule when GL-509 is used). The output power in the single-mode regime is more than 10 W at oscillation on CO2 (on weak lines -- 1 W at least) and more than 1 W at oscillation on CO (on weak lines -- 0.05 W at least). The CO2 (CO) laser with the above parameters operated satisfactorily for a long time as a component of a trace gas analyzer and it was used also for local control of gaseous atmospheric pollutants by the method of PA-detection. For the purpose of widening spectral possibilities of the CO2 (CO) laser for working gas analyzer problems the oscillation of the CO2 laser radiation second harmonic in the AgGaSe2 crystal of a high optical quality has been obtained. The convertor efficiency factor about 0.15% with the laser output power approximately 5 W directed onto crystal has been realized.

Paper Details

Date Published: 2 January 1995
PDF: 5 pages
Proc. SPIE 2370, 5th International Conference on Laser Applications in Life Sciences, (2 January 1995); doi: 10.1117/12.197403
Show Author Affiliations
Vadim A. Gorobets, Institute of Physics (Belarus)
Vladimir O. Petukhov, Institute of Physics (Belarus)
Sergei Y. Tochitsky, Institute of Physics (Belarus)
V. V. Churakov, Institute of Physics (Belarus)

Published in SPIE Proceedings Vol. 2370:
5th International Conference on Laser Applications in Life Sciences
Pavel A. Apanasevich; Nikolai I. Koroteev; Sergei G. Kruglik; Victor N. Zadkov, Editor(s)

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