Presentation + Paper
29 August 2022 Optimizing Fourier-filtering WFS to reach sensitivity close to the fundamental limit
Author Affiliations +
Abstract
To reach the full potential of the new generation of ground based telescopes, an extremely fine adjustment of the phase is required. Wavefront control and correction before detection has therefore become one of the cornerstones of instruments to achieve targeted performance, especially for high-contrast imaging. A crucial feature of accurate wavefront control leans on the wavefront sensor (WFS). We present a strategy to design new Fourier-Filtering WFS that encode the phase close from the fundamental photon efficiency limit. This strategy seems promising as it generates highly sensitive sensors suited for different pupil shape configurations.
Conference Presentation
© (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
V. Chambouleyron, O. Fauvarque, C. Plantet, J.-F. Sauvage, N. Levraud, M. Cissé, B. Neichel, and T. Fusco "Optimizing Fourier-filtering WFS to reach sensitivity close to the fundamental limit", Proc. SPIE 12185, Adaptive Optics Systems VIII, 121852T (29 August 2022); https://doi.org/10.1117/12.2629452
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KEYWORDS
Sensors

Point spread functions

Adaptive optics

Optimization (mathematics)

Spatial frequencies

Photodetectors

Wavefront sensors

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