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Author Alpat'ev, A. N. ♦ Smirnov, V. A. ♦ Shcherbakov, Ivan A.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PLASMA PHYSICS AND FUSION TECHNOLOGY ♦ CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ ABSORPTION ♦ COOLING ♦ EFFICIENCY ♦ LASERS ♦ LUMINESCENCE ♦ ONE-DIMENSIONAL CALCULATIONS ♦ PUMPING ♦ STRESSES ♦ TEMPERATURE DISTRIBUTION ♦ THICKNESS ♦ DIMENSIONS ♦ EMISSION ♦ PHOTON EMISSION ♦ SORPTION
Abstract Analytic expressions are derived for one-dimensional distributions of temperature and thermoelastic stresses in an active element (AE) upon stationary multipass pumping equal to or exceeding the threshold. Three events caused by the AE heating are considered, each of the events damaging the laser: a decrease in the efficiency due to the change in the spectral and luminescent properties of the active media, violation of the normal regime of the AE cooling, and destruction of the AE due to the increase in the thermo-mechanical stresses. The domains of the parameters (such as the AE absorption coefficient, the AE thickness, etc.) are determined at which one of the above events first occurs as the pump intensity and correspondingly the AE temperature are increased. Expressions for estimating the limiting pump intensities for each set of the parameters are obtained. (active media)
ISSN 10637818
Educational Use Research
Learning Resource Type Article
Publisher Date 2009-11-30
Publisher Place United States
Journal Quantum Electronics
Volume Number 39
Issue Number 11


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