Differential optical transfer function (dOTF) wavefront sensing with the SPEED test-bed

R. Dharmadhikari; P. Martinez; C. Gouvret; A. Marcotto; A. Spang; J. Dejonghe; M. Beaulieu; C. Sallard

doi:10.1117/12.3019044

27 August 2024 Differential optical transfer function (dOTF) wavefront sensing with the SPEED test-bed

R. Dharmadhikari, P. Martinez, C. Gouvret, A. Marcotto, A. Spang, J. Dejonghe, M. Beaulieu, C. Sallard

Author Affiliations +

Proceedings Volume 13097, Adaptive Optics Systems IX; 130973Q (2024) https://doi.org/10.1117/12.3019044
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

Differential optical transfer function (dOTF) is a model-independent image-based wavefront sensor for measuring the complex field. This sensor-less wavefront sensing technique is efficient for precise non-common path aberrations (NCPA) measurement and the phasing of segmented telescopes. In this communication, we report on a thorough exploration of the dOTF method with the SPEED facility for NCPA and cophasing optics application.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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R. Dharmadhikari, P. Martinez, C. Gouvret, A. Marcotto, A. Spang, J. Dejonghe, M. Beaulieu, and C. Sallard "Differential optical transfer function (dOTF) wavefront sensing with the SPEED test-bed", Proc. SPIE 13097, Adaptive Optics Systems IX, 130973Q (27 August 2024); https://doi.org/10.1117/12.3019044

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