Developments on LLNL's high contrast testbed and Lick/ShaneAO

LLNL has recently setup a High Contrast Testbed (HCT) for AO and exoplanet imaging technology development. We present the various HCT technologies currently under development, including (1) a Wynne corrector, (2) multi-wavefront sensor (WFS) single conjugate AO (SCAO) control. We present HCT testing results of a first Wynne corrector prototype with a self-coherent camera. We present updates on development efforts to design and apply multi-WFS SCAO control to our HCT setup. We also present ongoing HCT deformable mirror and WFS upgrades. Lastly, we present developments for REDWOODS, a project to deploy many of these technologies on-sky on a sub-bench of the Shane AO system at Lick Observatory.

Publication Details

Journal
ArXiv.org
Published
2025-08-14
Primary Topic
Geochemistry and Geologic Mapping
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article
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article

Developments on LLNL's high contrast testbed and Lick/ShaneAO

ArXiv.org
Geochemistry and Geologic Mapping
article

Developments on LLNL's high contrast testbed and Lick/ShaneAO

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Abstract

LLNL has recently setup a High Contrast Testbed (HCT) for AO and exoplanet imaging technology development. We present the various HCT technologies currently under development, including (1) a Wynne corrector, (2) multi-wavefront sensor (WFS) single conjugate AO (SCAO) control. We present HCT testing results of a first Wynne corrector prototype with a self-coherent camera. We present updates on development efforts to design and apply multi-WFS SCAO control to our HCT setup. We also present ongoing HCT deformable mirror and WFS upgrades. Lastly, we present developments for REDWOODS, a project to deploy many of these technologies on-sky on a sub-bench of the Shane AO system at Lick Observatory.

ArXiv.org
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Geochemistry and Geologic Mapping
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Developments on LLNL's high contrast testbed and Lick/ShaneAO · ArXiv.org (2025) | TGRS Research Map | TGRS