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The MICADO first light imager for the ELT: off-axis performance of PSF reconstruction
Matteo Simioni, Daniel Jodlbauer, Carmelo Arcidiacono +14
The highest scientific return, for adaptive optics (AO) observations, is achieved with a reliable reconstruction of the PSF. This is especially true for MICADO@ELT. In this present…
On-sky validation of image-based adaptive optics wavefront sensor referencing
Nour Skaf, Olivier Guyon, Eric Gendron +14
Differentiating between an exoplanet signal and residual speckle noise is a key challenge in high-contrast imaging. Speckles are due to a combination of fast, slow and static wavef…
A correlation-locking adaptive filtering technique for minimum variance integral control in adaptive optics
Vincent Deo, Éric Gendron, Fabrice Vidal +6
We propose the Correlation-Locking Optimization SchEme (CLOSE), a real-time adaptive filtering technique for adaptive optics (AO) systems controlled with integrators. CLOSE leverag…
Numerical estimation of wavefront error breakdown in adaptive optics
Florian Ferreira, Eric Gendron, Gérard Rousset +1
Adaptive optics (AO) system performance is improved using post-processing techniques, such as point spread function (PSF) deconvolution. The PSF estimation involves characterizatio…
On-sky demonstration of matched filters for wavefront measurements using ELT-scale elongated laser guide stars
A. G. Basden, L. Bardou, D. Bonaccini Calia +18
The performance of adaptive optics systems is partially dependant on the algorithms used within the real-time control system to compute wavefront slope measurements. We demonstrate…
Wave-front error breakdown in LGS MOAO validated on-sky by CANARY
O. A. Martin, É. Gendron., G. Rousset +7
CANARY is the multi-object adaptive optics (MOAO) on-sky pathfinder developed in the perspective of Multi-Object Spectrograph on Extremely Large Telescopes~(ELTs). In 2013, CANARY…