Increase of efficiency of optical pumping of a broadband CO2 laser amplifier as a result of the use of a multicomponent active medium

B. S. Alexandrov; A. V. Arsenjev; M. A. Azarov; A. P. Burtsev; V. A. Drozdov; V. I. Mashendzhinov; V. E. Revich; V. V. Sudarikov; M. V. Tonkov; Georgiy A. Troshchinenko

doi:10.1117/12.515819

10 November 2003 Increase of efficiency of optical pumping of a broadband CO₂ laser amplifier as a result of the use of a multicomponent active medium

B. S. Alexandrov, A. V. Arsenjev, M. A. Azarov, A. P. Burtsev, V. A. Drozdov, V. I. Mashendzhinov, V. E. Revich, V. V. Sudarikov, M. V. Tonkov, Georgiy A. Troshchinenko

Author Affiliations +

Proceedings Volume 5120, XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers; (2003) https://doi.org/10.1117/12.515819
Event: XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 2002, Wroclow, Poland

Abstract

The problem of the increase of the energy conversion efficiency of a broadband CO2 laser amplifier with optical pumping by the multi-frequency HF-laser radiation is considered. To improve the utilization of the pumping radiation and to broaden the amplifier bandwidth the use of a buffered with Xe mixture of the isotopomers of carbon dioxide and nitrous oxide as active medium is proposed. Experimentally and by calculation the coefficients of an unsaturated absorption of ¹⁴N¹⁶O, ¹²C¹⁶O₂and ¹³C¹⁶O₂ were determined on 19 lines of the pulsed chemical HF-laser which concentrate up to 60% of its total output energy. The estimations show that the application of a three-component mixture of these molecular gases enables to increase up to 30% the coefficient of the utilization of the pumping radiation at aperture about 10 cm.

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B. S. Alexandrov, A. V. Arsenjev, M. A. Azarov, A. P. Burtsev, V. A. Drozdov, V. I. Mashendzhinov, V. E. Revich, V. V. Sudarikov, M. V. Tonkov, and Georgiy A. Troshchinenko "Increase of efficiency of optical pumping of a broadband CO₂ laser amplifier as a result of the use of a multicomponent active medium", Proc. SPIE 5120, XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, (10 November 2003); https://doi.org/10.1117/12.515819

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