The next generation of adaptive optics (AO) systems have chosen the pyramid wavefront sensor (PWFS) that is renowned for its performance in closed-loop AO. With the advent of the extremely large telescope era, it is essential to investigate methods to enhance PWFS performance further. Microwave Kinetic Inductance Detectors (MKID) are photon-counting devices that record the arrival time and energy of each incident photon. They offer new capabilities beyond those of existing detectors and can significantly improve AO performance. This project aims to demonstrate how the use of an MKID can improve PWFS performance to meet the demanding requirements of an ELT instrument through simulation, laboratory tests and finally an on-sky demonstration. Here we introduce the project, presenting preliminary simulation results and detailing the optical bench.
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Magniez et al. (2024) studied this question.
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