Open AccessReal-time 1.5 kHz adaptive optical system to correct for atmospheric turbulence
Author(s) -
Alexis Kudryashov,
Alexey Rukosuev,
Alexander Nikitin,
Ilya Galaktionov,
Julia Sheldakova
Publication year - 2020
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.409201
Subject(s) - adaptive optics , wavefront , optics , laser , turbulence , deformable mirror , physics , free space optical communication , wavefront sensor , meteorology
Problems of constructing an adaptive optical system intended for correcting the wavefront of laser radiation that has passed through a turbulent atmosphere are considered. To ensure high-quality wavefront correction, the frequency of the discrete system should be at least 1 kHz or more. This performance can be achieved by using FPGA as the main control element of the system. The results of a laboratory experiments of the laser beam phase fluctuations caused by turbulence, produced by the airflow of a fan heater, correction by means of the FPGA-based adaptive optical system are presented. The system efficiency was evaluated at various correction frequencies up to 1875 Hz.