Toward on-sky adaptive optics control using reinforcement learning-model-based policy optimization for adaptive optics
Context. The direct imaging of potentially habitable exoplanets is one prime science case for
the next generation of high contrast imaging instruments on ground-based, extremely large …
the next generation of high contrast imaging instruments on ground-based, extremely large …
Confusion in differential piston measurement with the pyramid wavefront sensor
A Bertrou-Cantou, E Gendron, G Rousset… - Astronomy & …, 2022 - aanda.org
Context. The pyramid was proven to be a highly sensitive and versatile wave-front sensor
(WFS) and has been selected to be installed on the single conjugate adaptive optics (AO) …
(WFS) and has been selected to be installed on the single conjugate adaptive optics (AO) …
Non-modulated pyramid wavefront sensor-Use in sensing and correcting atmospheric turbulence
Context. The diffusion of adaptive optics systems in astronomical instrumentation for large
ground-based telescopes is rapidly increasing and the pyramid wavefront sensor is …
ground-based telescopes is rapidly increasing and the pyramid wavefront sensor is …
Nonlinear wave front reconstruction from a pyramid sensor using neural networks
The pyramid wave front sensor (PyWFS) has become increasingly popular to use in
adaptive optics (AO) systems due to its high sensitivity. The main drawback of the PyWFS is …
adaptive optics (AO) systems due to its high sensitivity. The main drawback of the PyWFS is …
Integrating supervised and reinforcement learning for predictive control with an unmodulated pyramid wavefront sensor for adaptive optics
We propose a novel control approach that combines offline supervised learning to address
the challenges posed by non-linear phase reconstruction using unmodulated pyramid …
the challenges posed by non-linear phase reconstruction using unmodulated pyramid …
The MICADO first light imager for the ELT: overview of the SCAO module at its final design
Y Clénet, T Buey, E Gendron, S Karkar… - … Optics Systems VIII, 2022 - spiedigitallibrary.org
MICADO is the ELT first light instrument, an imager working at the diffraction limit of the
telescope thanks to two adaptive optics (AO) modes: a single conjugate one (SCAO) …
telescope thanks to two adaptive optics (AO) modes: a single conjugate one (SCAO) …
Numerical simulations for the SAXO+ upgrade: Performance analysis of the adaptive optics system
C Goulas, R Galicher, F Vidal, J Mazoyer… - Astronomy & …, 2024 - aanda.org
Context. SPHERE, operating at the VLT since 2014, is currently one of the high-contrast
instruments with a higher performance. Its adaptive optics system, known as SAXO, will be …
instruments with a higher performance. Its adaptive optics system, known as SAXO, will be …
Making the unmodulated Pyramid wavefront sensor smart-Closed-loop demonstration of neural network wavefront reconstruction with MagAO-X
Almost all current and future high-contrast imaging instruments will use a Pyramid wavefront
sensor (PWFS) as a primary or secondary wavefront sensor. The main issue with the PWFS …
sensor (PWFS) as a primary or secondary wavefront sensor. The main issue with the PWFS …
Petalometry for the ELT: dealing with the wavefront discontinuities induced by the telescope spider
A Bertrou-Cantou, E Gendron… - … Optics Systems VII, 2020 - spiedigitallibrary.org
The presence of a six legged 50cm-wide spider supporting the secondary mirror of the
Extremely Large Telescope (ELT) breaks the spatial continuity of the incoming wave-front …
Extremely Large Telescope (ELT) breaks the spatial continuity of the incoming wave-front …
Model-free reinforcement learning with a non-linear reconstructor for closed-loop adaptive optics control with a pyramid wavefront sensor
We present a model-free reinforcement learning (RL) predictive model with a supervised
learning non-linear reconstructor for adaptive optics (AO) control with a pyramid wavefront …
learning non-linear reconstructor for adaptive optics (AO) control with a pyramid wavefront …