TROIA adaptive optics system for DAG telescope: assembly and laboratory performance prior to on-sky assessment

Onur Keskin; Laurent Jolissaint; Audrey Bouxin; Cahit Yesilyaprak

doi:10.1117/12.2630893

29 August 2022 TROIA adaptive optics system for DAG telescope: assembly and laboratory performance prior to on-sky assessment

Onur Keskin, Laurent Jolissaint, Audrey Bouxin, Cahit Yesilyaprak

Author Affiliations +

Proceedings Volume 12185, Adaptive Optics Systems VIII; 121851W (2022) https://doi.org/10.1117/12.2630893
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

In this article, we describe the current status of the development of TROIA ∗, a pyramid wavefront sensor based adaptive optics system designed for DAG, a new 4 m telescope located in Eastern Anatolia, Turkey. The wavefront uses a no-noise electron-multiplied CCD camera, and the deformable mirror has a large actuators density, allowing coronagraphic science in one hand, but also system optimization for low light level or bad seeing conditions thanks to the versatility of the P-WFS. We describe the optical design, the mounting and alignment procedure and our loop control concept. Closed loop results are described, showing that while there are still many issues to fix before the sky version, the system behaves as expected.

Conference Presentation

Citation Download Citation

Onur Keskin, Laurent Jolissaint, Audrey Bouxin, and Cahit Yesilyaprak "TROIA adaptive optics system for DAG telescope: assembly and laboratory performance prior to on-sky assessment", Proc. SPIE 12185, Adaptive Optics Systems VIII, 121851W (29 August 2022); https://doi.org/10.1117/12.2630893

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