In this article, we describe the development of the newest adaptive optics system for the Big Solar Vacuum Telescope of the Baikal Astrophysical Observatory. This system is a result of collaboration between VE Zuev Institute of Atmospheric Optics SB RAS, Tomsk, and Institute of Solar-Terrestrial Physics SB RAS, Irkutsk. The system includes two active mirrors for the correction: domestic tip-tilt and bimorph deformable (Active Optics NightN Ltd.), and separate wavefront sensors (WFS). A correlation S-H wave-front sensor is based on a Allies Prosilica GX-1050 GigE camera with speed of 309 Hz and frame size of 1248x1248 pixels. A personal computer is used for bimorph deformable mirror image processing. The mirror was successfully used during the 2010–2014 observing seasons. The system developed is capable of correcting up to 35 modes, thus providing diffraction limited images at visible wavelengths.
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L. V. Antoshkin ; N. N. Botugina ; L. A. Bolbasova ; M. L. Demidov ; V. M. Grigoriev, et al.
Adaptive system for solar telescopes operating in the strongly turbulent atmosphere
", Proc. SPIE 9909, Adaptive Optics Systems V, 990932 (August 4, 2016); doi:10.1117/12.2231936; http://dx.doi.org/10.1117/12.2231936