Asian Journal of Physics Vol. 33, Nos 5 & 6 (2024) 399-409

Numerical tool for simulating and evaluating Shack-Hartmann wavefront sensor algorithms

Suman Sangiri and Vyas Akondi
Department of Physical Sciences, Indian Institute of Science Education and Research Berhampur,
Berhampur, Odisha- 760 010, India

Shack-Hartmann wavefront sensors (SHWSs) encounter errors due to factors such as wavefront sampling, non-uniform illumination, and inaccuracies in centroiding. These inaccuracies may result from pixel sampling, digitization, noise (including readout and photon noise), light scattering, lenslet crosstalk, diffraction effects near pupil boundaries, and computational errors. To address these challenges, new algorithms, including those utilizing artificial intelligence, are being developed. Testing these algorithms requires a robust numerical framework that starts with a known wavefront, simulates the corresponding SHWS image for a given set of parameters, and then calculates the wavefront from the image. Here, we introduce a MATLAB-based application designed for this purpose. Our tool effectively evaluates SHWS performance parameters, providing a reliable platform for the testing and development of advanced SHWS algorithms. © Anita Publications. All rights reserved.
Doi: 10.54955/AJP.33.5-6.2024.399-409
Keywords: Wavefront sensing, Shack-Hartmann, aberrations, Adaptive optics, Zernike polynomials, Numerical simulation.

Peer Review Information
Method: Single- anonymous; Screened for Plagiarism? Yes
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