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Proceedings Paper

Effective multiline pulsed first-overtone CO laser operating in a spectral range of 2.5 to 4.1 um
Author(s): Nikolai G. Basov; Gordon D. Hager; Andrei A. Ionin; Andrei A. Kotkov; Alexander K. Kurnosov; John E. McCord; Anatoly P. Napartovich; Leonid V. Seleznev; Nikolay G. Turkin
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Paper Abstract

Output characteristics of a pulsed e-beam controlled discharge laser operating on the first-overtone (FO) transitions (?V=2) of CO molecule have been studied both experimentally and theoretically. Various sets of dielectric mirrors with high reflectivity in the range of the overtone spectrum have been used for the laser resonator. Multiwavelength lasing has been obtained in the wide spectral range of 2.5 - 4.1 µm on vibrational transitions from 6?4 up to 37?35. Maximum output efficiency as high as 11% has been experimentally obtained for the broad band FO CO laser. Output efficiency of the laser operating on a few vibrational bands within the relatively narrow spectral range 2.5-2.7 µm comes up to 5% at entirely suppressed fundamental band (?V=1) lasing. FO CO lasing was observed within an initial gas temperature interval of 100-220 K. Spectral characteristics of the overtone laser operating on a selected set of vibrational bands have been analyzed theoretically. Theoretical calculations based on the experimental data predict that multiline FO CO laser efficiency can be increased up to 20%.

Paper Details

Date Published: 7 June 1999
PDF: 7 pages
Proc. SPIE 3612, Gas and Chemical Lasers and Intense Beam Applications II, (7 June 1999); doi: 10.1117/12.350657
Show Author Affiliations
Nikolai G. Basov, P.N. Lebedev Physical Institute (Russia)
Gordon D. Hager, Air Force Research Lab. (United States)
Andrei A. Ionin, P.N. Lebedev Physical Institute (Russia)
Andrei A. Kotkov, P.N. Lebedev Physical Institute (Russia)
Alexander K. Kurnosov, Troitsk Institute for Innovation and Fusion Research (Russia)
John E. McCord, Air Force Research Lab. (United States)
Anatoly P. Napartovich, Troitsk Institute for Innovation and Fusion Research (Russia)
Leonid V. Seleznev, P.N. Lebedev Physical Institute (Russia)
Nikolay G. Turkin, Troitsk Institute for Innovation and Fusion Research (Russia)

Published in SPIE Proceedings Vol. 3612:
Gas and Chemical Lasers and Intense Beam Applications II
Ernest A. Dorko, Editor(s)

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