CURRENT TRENDS IN THE DEVELOPMENT OF HIGH-ENERGY LASERS

S. G. Garanin; Гаранин С. Г.; V. N. Derkach; Деркач В. Н.; K. N. Makarov; Макаров К. Н.; V. A. Ostrovskiy; Островский В. А.; M. I. Pergament; Пергамент М. И.; M. V. Putilin; Путилин М. В.; D. V. Sizmin; Сизмин Д. В.

doi:10.31857/S2686740023060068

CURRENT TRENDS IN THE DEVELOPMENT OF HIGH-ENERGY LASERS

Autores: Garanin S.¹, Derkach V.¹, Makarov K.², Ostrovskiy V.², Pergament M.², Putilin M.², Sizmin D.¹
Afiliações:
1. The Russian Federal Nuclear Center – All-Russian Scientific Research Institute of Experimental Physics, Institute of Laser Physical Research
2. State Research Center of the Russian Federation Troitsk Institute for Innovation and Fusion Research
Edição: Volume 513, Nº 1 (2023)
Páginas: 18-28
Seção: ФИЗИКА
URL: https://journals.rcsi.science/2686-7400/article/view/247138
DOI: https://doi.org/10.31857/S2686740023060068
EDN: https://elibrary.ru/HTWWHJ
ID: 247138

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Resumo

Current trends in developing high-energy lasers with pulse energies in the tens and hundreds of joules are considered. Active media are analyzed for their use in such lasers. Yb:YAG active crystalline and ceramic elements (AE) of Russian production are experimentally investigated at temperatures from 100 K to 295 K. The data of the AE cryogenic cooling system are presented. A diode pumping system for AE and a homogenizer of its radiation are described. The physical and technical characteristics of the pumping system are given. Fresnel losses, absorption losses, and losses due to amplified spontaneous emission (ASE), which reduce the energy stored in an inverted population, are experimentally measured. The results of measuring the gain in multipass circuits with different sets of AEs are presented.

Palavras-chave

repetitively pulsed lasers, diode pumping, gas (cryogenic) cooling

Bibliografia

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