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Proceedings Paper

Amplified spontaneous emission and nanosecond pulse amplification in large-aperture electron-beam-pumped KrF amplifiers
Author(s): Vladimir D. Zvorykin; Valerii G. Bakaev; A. O. Levchenko; A. G. Molchanov; N. N. Ustinovskii
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Paper Abstract

The experiments have been performed at 100-J-class GARPUN KrF laser installation, which consists of 20-ns discharge-pumped master oscillator and two stages of e-beam-pumped amplifiers with gain volumes of 10x10x100 cm and 16x18x100 cm. Gain and absorption coefficients were measured in a single-pass scheme, while intrinsic efficiency of about 12% was demonstrated in the saturated double-pass amplification. They were compared with numerical simulations. A numerical code solved a set os simultaneous self-consistent kinetic equations together with amplification of laser radiation and spontaneous emission in large-aperture KrF lasers. Being verfied with the experimental data the code was used to forecast the parameters of IFE-scale KrF amplifiers.

Paper Details

Date Published: 23 March 2005
PDF: 6 pages
Proc. SPIE 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, (23 March 2005); doi: 10.1117/12.611114
Show Author Affiliations
Vladimir D. Zvorykin, P.N. Lebedev Physical Institute (Russia)
Valerii G. Bakaev, P.N. Lebedev Physical Institute (Russia)
A. O. Levchenko, P.N. Lebedev Physical Institute (Russia)
A. G. Molchanov, P.N. Lebedev Physical Institute (Russia)
N. N. Ustinovskii, P.N. Lebedev Physical Institute (Russia)


Published in SPIE Proceedings Vol. 5777:
XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers
Jarmila Kodymova, Editor(s)

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