Status of predictive wavefront control on Keck II adaptive optics bench: on-sky coronagraphic results

Maaike A. van Kooten; Rebecca Jensen-Clem; Sylvain Cetre; Sam Ragland; Charlotte Z. Bond; J. Fowler; Peter Wizinowich

doi:10.1117/12.2594863

1 September 2021 Status of predictive wavefront control on Keck II adaptive optics bench: on-sky coronagraphic results

Maaike A. van Kooten, Rebecca Jensen-Clem, Sylvain Cetre, Sam Ragland, Charlotte Z. Bond, J. Fowler, Peter Wizinowich

Proceedings Volume 11823, Techniques and Instrumentation for Detection of Exoplanets X; 118231F (2021) https://doi.org/10.1117/12.2594863
Event: SPIE Optical Engineering + Applications, 2021, San Diego, California, United States

Abstract

We present the results from our predictive wavefront control algorithm tested using the near-infrared pyramid wavefront sensor on the Keck II adaptive optics (AO) bench. The algorithm aims to minimise the servo-lag error of the AO system. We compare the achieved contrast for a vortex coronagraph for both the predictive control algorithm and the standard integral control law.

Conference Presentation

Citation Download Citation

Maaike A. van Kooten, Rebecca Jensen-Clem, Sylvain Cetre, Sam Ragland, Charlotte Z. Bond, J. Fowler, and Peter Wizinowich "Status of predictive wavefront control on Keck II adaptive optics bench: on-sky coronagraphic results", Proc. SPIE 11823, Techniques and Instrumentation for Detection of Exoplanets X, 118231F (1 September 2021); https://doi.org/10.1117/12.2594863

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