Recent R&D progress in wavefront sensing and adaptive optics control

Wednesday 10 July 2024

Title : Recent R&D progress in wavefront sensing and adaptive optics control

Speaker : Jean-Pierre Véran (Herzberg Astrophysics)

Abstract :

The talk will be in three parts. The first part will discuss the novel concept of time-resolved wavefront sensing, which is based on SPAD-array detectors. I will present our most recent simulation results showing the significant increased sensitivity enabled by this technique, as well as our plans for lab and on-sky demonstration. In the second part I will discuss recent developments using AI-based AO reconstructors to overcome the non-linearities in pyramid wavefront sensors. In the third part, I will show recent on-sky results obtained with REVOLT, the AO test-bench on our local 1.2m telescope, including fiber injection of AO corrected light and open-loop AO.