Revisiting optical transfer function-based focal plane wavefront sensors for correcting NCPAs

P. Martinez; R. Dharmadhikari; A. Spang

doi:10.1117/12.3019041

27 August 2024 Revisiting optical transfer function-based focal plane wavefront sensors for correcting NCPAs

P. Martinez, R. Dharmadhikari, A. Spang

Author Affiliations +

Proceedings Volume 13097, Adaptive Optics Systems IX; 130973P (2024) https://doi.org/10.1117/12.3019041
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

We examine several focal plane wavefront sensing (FPWFS) approaches from a theoretical perspective, specifically comparing their fundamental origins and similarities. We consider various techniques, including the differential optical transfer function wavefront sensor, the self-coherent camera wavefront sensor, the fast-modulated self-coherent camera wavefront sensor, and other variants, as well as pair-wise probing. They are evaluated within a unified framework based on precise optical transfer function analysis and their implementation on the high-contrast imaging SPEED test bed. These concepts are highly similar in essence, even serving as mere extensions of one another. Indeed, we emphasise that these FPWFS can be seen as different expressions or embodiment of the same underlying principles.

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

Citation Download Citation

P. Martinez, R. Dharmadhikari, and A. Spang "Revisiting optical transfer function-based focal plane wavefront sensors for correcting NCPAs", Proc. SPIE 13097, Adaptive Optics Systems IX, 130973P (27 August 2024); https://doi.org/10.1117/12.3019041

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