Small-signal gain and kinetic processes on highly excited vibrational levels in active medium of pulsed first-overtone CO laser

Andrei A. Ionin; Andrei A. Kotkov; Yurii M. Klimachev; Leonid V. Seleznev; Dmitrii V. Sinitsyn; Alexander K. Kurnosov; Anatoly P. Napartovich; Sergei Shnyrev; Gordon D. Hager; John E. McCord

doi:10.1117/12.482068

13 September 2002 Small-signal gain and kinetic processes on highly excited vibrational levels in active medium of pulsed first-overtone CO laser

Andrei A. Ionin, Andrei A. Kotkov, Yurii M. Klimachev, Leonid V. Seleznev, Dmitrii V. Sinitsyn, Alexander K. Kurnosov, Anatoly P. Napartovich, Sergei Shnyrev, Gordon D. Hager, John E. McCord

Author Affiliations +

Proceedings Volume 4760, High-Power Laser Ablation IV; (2002) https://doi.org/10.1117/12.482068
Event: International Symposium on High-Power Laser Ablation 2002, 2002, Taos, New Mexico, United States

Abstract

Temporal behavior of small signal gain (SSG) for a frequency tunable first-overtone CO laser has been studied both experimentally and theoretically. The laser operates on highly excited vibrational transitions from 20→18 up to 38→36 that correspond to laser wavelength range between ~3 and 4 microns coinciding to atmospheric 'transparency window'. Maximum SSG comes up to 0.4 m^-1. It is shown that multiquamtum and asymmetric VV exchange has to be taken into account when analyzing processes of population formation on high vibrational transition.

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Andrei A. Ionin, Andrei A. Kotkov, Yurii M. Klimachev, Leonid V. Seleznev, Dmitrii V. Sinitsyn, Alexander K. Kurnosov, Anatoly P. Napartovich, Sergei Shnyrev, Gordon D. Hager, and John E. McCord "Small-signal gain and kinetic processes on highly excited vibrational levels in active medium of pulsed first-overtone CO laser", Proc. SPIE 4760, High-Power Laser Ablation IV, (13 September 2002); https://doi.org/10.1117/12.482068

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