J Fowler, R Landman - Techniques and Instrumentation for …, 2023 - spiedigitallibrary.org
As we look to the next generation of adaptive optics systems, now is the time to develop and explore the technologies that will allow us to image rocky Earth-like planets; wavefront …
We present a novel formulation of closed-loop adaptive optics (AO) control as a multi-agent reinforcement learning (MARL) problem in which the controller is able to learn a non-linear …
Current and future high-contrast imaging instruments require extreme adaptive optics systems to reach contrasts necessary to directly imaged exoplanets. Telescope vibrations …
We propose a novel control approach that combines offline supervised learning to address the challenges posed by non-linear phase reconstruction using unmodulated pyramid …
G Orban De Xivry, M Quesnel… - Monthly Notices of …, 2021 - academic.oup.com
Focal plane wavefront sensing (FPWFS) is appealing for several reasons. Notably, it offers high sensitivity and does not suffer from non-common path aberrations (NCPAs). The price …
N Cerpa-Urra, M Kasper, C Kulcsár… - Journal of …, 2022 - spiedigitallibrary.org
The contrast performance of current extreme adaptive optics (XAO) systems can be improved by adding a second AO correction stage featuring its own wavefront sensor (WFS) …
J Tang, J Wu, J Zhang, M Zhang, Z Ren, J Di… - Photonics …, 2023 - opg.optica.org
The time-delay problem, which is introduced by the response time of hardware for correction, is a critical and non-ignorable problem of adaptive optics (AO) systems. It will …
JG Chen, V Shah, L Liu - Optics Letters, 2021 - opg.optica.org
We apply a U-Net-based convolutional neural network (NN) architecture to the problem of predictive adaptive optics (AO) for tracking and imaging fast-moving targets, such as …