Open AccessComparative analysis of methods for calibration of aShack-Hartmann wavefront sensor
Author(s) -
Денисов Дмитрий Геннадьевич,
Баумана Россия,
© Денисов,
Д. В. Денисов,
Anna S. Zolotukhina,
Alexis Kudryashov,
А. В. Никитин
Publication year - 2021
Language(s) - English
DOI - 10.51368/2307-4469-2021-9-2-153-163
Subject(s) - wavefront , wavefront sensor , tilt (camera) , calibration , optics , sensitivity (control systems) , dynamic range , physics , tilt sensor , mathematics , geometry , engineering , quantum mechanics , electronic engineering , optical fiber
This paper is devoted to a comparative analysis of the methods for calibrating the Shack-Hartmann wavefront sensor: on the plane wavefront (calibration by turning the sensor) and spherical wavefront (absolute calibration). For comparison, a gen-eral analysis of the advantages and disadvantages of calibration methods was carried out, including the creation of a reference wavefront and the determination of the ex-act geometric parameters of the sensor. The geometric parameters of the Shack-Hartmann wavefront sensor are used in the reconstruction of the measured wave-front and determine such parameters of the Shack-Hartmann sensor as the dynamic range and sensitivity. Also, for numerical comparison, an analysis of the errors of the dynamic range, determined by aberrations such as tilt and defocus, was carried out, and the dependences of these errors on the error of the geometric parameters of the sensor were constructed.