Preliminary lab demonstration of a 3-sided reflective pyramid wavefront sensor for Shane AO using SEAL testbed

Dominic F. Sanchez; Philip M. Hinz; Mark Chun; Christopher Ratliff; Daren Dillon; Charlotte Z. Bond

doi:10.1117/12.2630724

29 August 2022 Preliminary lab demonstration of a 3-sided reflective pyramid wavefront sensor for Shane AO using SEAL testbed

Dominic F. Sanchez, Philip M. Hinz, Mark Chun, Christopher Ratliff, Daren Dillon, Charlotte Z. Bond

Author Affiliations +

Proceedings Volume 12185, Adaptive Optics Systems VIII; 121858F (2022) https://doi.org/10.1117/12.2630724
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Conference Poster

Abstract

In this paper, we present the preliminary results for a three-sided reflective pyramid wavefront sensor (3-RPWFS) for Shane Telescope’s adaptive optics module. HCIPy simulations using a modulation radius of 5λ/D indicate comparable performance to the module’s existing Shack-Hartmann wavefront sensor. An opto-mechanical design is modeled to meet the physical constraints for Shane AO installation and future on-sky testing. A closed-loop demonstration of a 3-RPWFS prototype is conducted using the SEAL testbed, and it yields promising results illustrating proof of concept. We discuss the details of the simulation, opto-mechanical design, and SEAL closed-loop results for the 3-RPWFS.

Citation Download Citation

Dominic F. Sanchez, Philip M. Hinz, Mark Chun, Christopher Ratliff, Daren Dillon, and Charlotte Z. Bond "Preliminary lab demonstration of a 3-sided reflective pyramid wavefront sensor for Shane AO using SEAL testbed", Proc. SPIE 12185, Adaptive Optics Systems VIII, 121858F (29 August 2022); https://doi.org/10.1117/12.2630724

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