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Proceedings Paper

Small signal gain time behavior on high vibrational transitions (V>15) of pulsed CO laser amplifier
Author(s): Andrei A. Ionin; Yurii M. Klimachev; Andrei A. Kotkov; Dmitrii V. Sinitsyn; Leonid V. Seleznev; S. Vetoshkin; A. Yu. Kozlov; O. Rulev; Anatolii P. Napartovich; Alexander K. Kurnosov; Sergei Shnyrev
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Paper Abstract

Small-signal gain time behavior for a pulsed e-beam sustained discharge CO laser amplifier operating on fundamental band vibrational transitions V → V-1 from 6 → 5 (λ ~ 5.0 μm) up to 32 → 31 (λ~7.5 μm) was studied both experimentally and theoretically at various parameters of active medium. Special attention was paid to the small-signal gain time behavior on high vibrational transitions (V > 15). As was previously shown by us, multi-quantum theoretical model of vibrational exchange has to be applied for a correct description of a CO laser operating on vibrational transitions V → V-1 with V higher than 15 instead of a single-quantum one. To make easier theoretical interpretation of the experimental results, the binary nitrogen free gas mixture CO:He = 1:4 was used in our experiments. Total gas density and initial gas temperature was 0.12 Amagat and ~100 K, respectively. The complete kinetic model of a CO laser taking into account multi-qauntum vibrational exchange was employed for theoretical description of the small-signal gain time behavior. The theoretical results were compared with the experimental data.

Paper Details

Date Published: 16 June 2004
PDF: 8 pages
Proc. SPIE 5479, Laser Optics 2003: High-Power Gas Lasers, (16 June 2004); doi: 10.1117/12.558217
Show Author Affiliations
Andrei A. Ionin, P.N. Lebedev Physical Institute (Russia)
Yurii M. Klimachev, P.N. Lebedev Physical Institute (Russia)
Andrei A. Kotkov, P.N. Lebedev Physical Institute (Russia)
Dmitrii V. Sinitsyn, P.N. Lebedev Physical Institute (Russia)
Leonid V. Seleznev, P.N. Lebedev Physical Institute (Russia)
S. Vetoshkin, P.N. Lebedev Physical Institute (Russia)
A. Yu. Kozlov, P.N. Lebedev Physical Institute (Russia)
O. Rulev, P.N. Lebedev Physical Institute (Russia)
Anatolii P. Napartovich, Troitsk Institute for Innovation and Fusion Research (Russia)
Alexander K. Kurnosov, Troitsk Institute for Innovation and Fusion Research (Russia)
Sergei Shnyrev, Troitsk Institute for Innovation and Fusion Research (Russia)

Published in SPIE Proceedings Vol. 5479:
Laser Optics 2003: High-Power Gas Lasers
Oleg B. Danilov, Editor(s)

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