Amplified spontaneous emission and nanosecond pulse amplification in large-aperture electron-beam-pumped KrF amplifiers

Vladimir D. Zvorykin; Valerii G. Bakaev; A. O. Levchenko; A. G. Molchanov; N. N. Ustinovskii

doi:10.1117/12.611114

23 March 2005 Amplified spontaneous emission and nanosecond pulse amplification in large-aperture electron-beam-pumped KrF amplifiers

Vladimir D. Zvorykin, Valerii G. Bakaev, A. O. Levchenko, A. G. Molchanov, N. N. Ustinovskii

Author Affiliations +

Proceedings Volume 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers; (2005) https://doi.org/10.1117/12.611114
Event: XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 2004, Prague, Czech Republic

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.

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Vladimir D. Zvorykin, Valerii G. Bakaev, A. O. Levchenko, A. G. Molchanov, and N. N. Ustinovskii "Amplified spontaneous emission and nanosecond pulse amplification in large-aperture electron-beam-pumped KrF amplifiers", Proc. SPIE 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, (23 March 2005); https://doi.org/10.1117/12.611114

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