Frequency parameters of wavefront variations from optical measurement data

A. Yu. Shikhovtsev

doi:10.1117/12.2644585

7 December 2022 Frequency parameters of wavefront variations from optical measurement data

A. Yu. Shikhovtsev

Proceedings Volume 12341, 28th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 123410G (2022) https://doi.org/10.1117/12.2644585
Event: 28th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 2022, Tomsk, Russia

Abstract

For adaptive optics systems, one of the fundamental task to be decided is determination of the frequency characteristics of wavefront distortion variations in the focus of a ground-based solar telescope. It is a classical approach to use the atmospheric coherence time related to the vertical distribution of turbulence and wind speed. Besides, small-scale variations of wavefront induced due to turbulence for understanding the large-scale structure of atmospheric turbulence it is important to estimate frequencies of large-scale (low-frequency) turbulent components. The paper presents the results of the analysis of the frequency characteristics of wavefront distortion variations recorded in the adaptive optics system of the Large Solar Vacuum Telescope of the Baikal Astrophysical Observatory.

Citation Download Citation

A. Yu. Shikhovtsev "Frequency parameters of wavefront variations from optical measurement data", Proc. SPIE 12341, 28th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 123410G (7 December 2022); https://doi.org/10.1117/12.2644585

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