On-sky results from REDWOODS, a platform at Lick/ShaneAO for testing second stage AO technologies

2026/07/31 by Benjamin L. Gerard, Dominic F. Sanchez, Aditya R. Sengupta +11
Physics and Astronomy · #astro-ph.IM

paper · pdf

Proceeding for SPIE Astronomical Telescopes and Instrumentation 2026, Adaptive Optics Session, Paper No. 14150-89

arxiv created 2026/07/31 · arxiv updated 2026/08/03

Abstract

REDWOODS is a new sub-testbed within the Shane Adaptive Optics (AO) system at Lick observatory, developed to test second stage AO wavefront sensing and control technologies, including a Self-Coherent Camera with optional broadband Wynne corrector, two different three-sided fully reflective highly broadband pyramid wavefront sensor modes, and multi-wavefront sensor single conjugate AO control. We present project results to date, including on-sky data.

Citations

• Jupyter simulations Using NGS Intensity with PyWFS for REDWOODS
• Developments on LLNL's high contrast testbed and Lick/ShaneAO
• Laboratory Demonstration of Real-Time Focal Plane Wavefront Control of Residual Atmospheric Speckles