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This article is cited in 6 scientific papers (total in 6 papers)
Lasers and amplifiers
Numerical analysis of amplification of picosecond pulses in a THL-100 laser system with an increase in the pump energy of the XeF(C – A) amplifier
A. G. Yastremskiia, N. G. Ivanova, V. F. Losevab a Institute of High Current Electronics, Siberian Branch of the Russian Academy of Sciences, Tomsk
b Tomsk Polytechnic University
Abstract:
Energy characteristics of laser radiation with a pulse width of 50 ps at an elevated pump energy of the XeF(C – A) amplifier of a hybrid THL-100 laser system are analysed numerically. The dynamics of the change in the energy and maximum intensity of laser radiation with an increase in the pump energy of the XeF(C – A) amplifier from 270 to 400 J is investigated. The results of studying the influence of the input beam divergence on the energy characteristics of the output beam are presented. It is shown that, for the existing system of mirrors, an increase in the pump energy to 400 J leads to an increase in the output energy from 3.2 to 5.5 J at a maximum radiation intensity of 57 GW cm-2. A system of amplifier mirrors with 27 laser beam passes and enlarged divergence angle of the amplified beam is considered. Theoretically, the proposed system of mirrors allows one to increase the laser pulse energy to 7.5 J at a maximum intensity of no more than 14.8 GW cm-2. The calculated efficiency of the conversion of the pump energy absorbed in the amplifier gas chamber into the lasing energy exceeds 3% in this regime.
Keywords:
hybrid THL-100 laser system, amplification of picosecond pulses, laser radiation energy, numerical simulation.
Received: 24.11.2017 Revised: 26.12.2017
Citation:
A. G. Yastremskii, N. G. Ivanov, V. F. Losev, “Numerical analysis of amplification of picosecond pulses in a THL-100 laser system with an increase in the pump energy of the XeF(C – A) amplifier”, Kvantovaya Elektronika, 48:3 (2018), 206–211 [Quantum Electron., 48:3 (2018), 206–211]
Linking options:
https://www.mathnet.ru/eng/qe16785 https://www.mathnet.ru/eng/qe/v48/i3/p206
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