Powerful iodine two-pass amplifier on the Iskra-5 facility

V. I. Annenkov; Y. Gaidash; I. Galahov; N. V. Jidkov; Gennadi A. Kirillov; V. A. Krotov; Vasili M. Murugov; V. Pankratov; V. Khrustalev; N. Cherkesov

doi:10.1117/12.425568

23 April 2001 Powerful iodine two-pass amplifier on the Iskra-5 facility

V. I. Annenkov, Y. Gaidash, I. Galahov, N. V. Jidkov, Gennadi A. Kirillov, V. A. Krotov, Vasili M. Murugov, V. Pankratov, V. Khrustalev, N. Cherkesov

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Proceedings Volume 4424, ECLIM 2000: 26th European Conference on Laser Interaction with Matter; (2001) https://doi.org/10.1117/12.425568
Event: 26th European Conference on Laser Interaction with Matter (ECLIM 2000), 2000, Prague, Czech Republic

Abstract

Experimental results of the laser pulse amplification research of the powerful iodine two-pass amplifier on 'Iskra-5' facility are presented in this report. Input and output of radiation in the two-pass amplifying scheme were realized in the far field through spatial filter. The amplifier with 8m active length and 30 by 30 cm² aperture was used. This amplifier was pumped by electro- discharge sources of multiple operations. The 400 mm- diameter liquid saturable absorber was used as optical shutter in the two-pass scheme. It is shown that for less than 1 J energy of input laser pulse, the energy of output pulse is 1 kJ. The obtained experimental data are satisfactory agreed with results of theoretical model This mode is based on the rate equations of laser pulse propagation along active medium without regard of energy losses and relaxation of excited iodine sublevels.

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V. I. Annenkov, Y. Gaidash, I. Galahov, N. V. Jidkov, Gennadi A. Kirillov, V. A. Krotov, Vasili M. Murugov, V. Pankratov, V. Khrustalev, and N. Cherkesov "Powerful iodine two-pass amplifier on the Iskra-5 facility", Proc. SPIE 4424, ECLIM 2000: 26th European Conference on Laser Interaction with Matter, (23 April 2001); https://doi.org/10.1117/12.425568

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KEYWORDS

Optical amplifiers

Iodine

Pulsed laser operation

Camera shutters

Amplifiers

Data modeling

Laser energy

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