A. A. Soloviev, A. V. Kotov, S. E. Perevalov, M. V. Esyunin, M. V. Starodubtsev, A. G. Alexandrov, I. V. Galaktionov, V. V. Samarkin, A. V. Kudryashov, V. N. Ginzburg, A. P. Korobeynikova, A. A. Kochetkov, A. A. Kuzmin, A. A. Shaikin, I. V. Yakovlev, E. A. Khazanov, “Adaptive system for wavefront correction of the PEARL laser facility”, Kvantovaya Elektronika, 2020, Volume 50, Number 12,Pages <nobr>1115

This article is cited in 11 papers

Lasers

Adaptive system for wavefront correction of the PEARL laser facility

A. A. Soloviev^a, A. V. Kotov^a, S. E. Perevalov^a, M. V. Esyunin^a, M. V. Starodubtsev^a, A. G. Alexandrov^b, I. V. Galaktionov^b, V. V. Samarkin^b, A. V. Kudryashov^bc, V. N. Ginzburg^a, A. P. Korobeynikova^a, A. A. Kochetkov^a, A. A. Kuzmin^a, A. A. Shaikin^a, I. V. Yakovlev^a, E. A. Khazanov^a

^a Federal Research Center The Institute of Applied Physics of the Russian Academy of Sciences, Nizhny Novgorod
^b Institute of Dynamics of Geospheres, Russian Academy of Sciences, Moscow
^c Moscow Polytechnic University

Abstract: The results of the operation of a wavefront correction system based on a deformable bimorph mirror of the PEARL subpetawatt laser facility are presented. An improvement in the quality of focusing of laser radiation, which led to an increase in the Strehl ratio from 0.3 to 0.6, is demonstrated. The features of the compensation for phase distortions of the wavefront in the case of a low pulse repetition rate, as well as the correct allowance for the noise of the CCD camera when calculating the Strehl ratio are investigated.

Keywords: adaptive wavefront correction system, bimorph deformable mirror, optimisation of the focusing quality of subpetawatt laser pulses, PEARL laser facility.

Received: 21.09.2020