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Pisma v Zhurnal Tekhnicheskoi Fiziki, 2023 Volume 49, Issue 21, Pages 42–46 (Mi pjtf7110)

Parametric amplification of quantum cascade laser radiation at 4.6 $\mu$m in a nonlinear ZnGeP$_2$ crystal

O. B. Vyskubenkoab, S. G. Garanina, N. G. Zakharovab, K. V. Kusakinaac, V. I. Lazarenkoab, A. Mukhina, G. S. Sokolovskiid, K. A. Tulyakovac

a Federal State Unitary Enterprise "Russian Federal Nuclear Center — All-Russian Research Institute of Experimental Physics", Sarov, Nizhny Novgorod Region, Russia
b National Research Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia
c Sarov branch of the Lomonosov Moscow State University, Nizhny Novgorod Region, Russia
d Ioffe Institute, St. Petersburg, Russia

Abstract: Amplification of pulsed quantum cascade laser radiation at $\sim$ 4.6 $\mu$m through nonlinear conversion in a ZnGeP$_2$ crystal has been demonstrated experimentally. The peak power at the output of a nonlinear crystal was 373 W at input peak power of the quantum cascade laser of 0.4 W.

Keywords: quantum cascade laser, Ho:YAG laser, parametric nonlinear conversion.

Received: 14.07.2023
Revised: 21.09.2023
Accepted: 21.09.2023

DOI: 10.61011/PJTF.2023.21.56464.19686



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