Advancing deformable mirror controllers for exoplanet imaging

Eduardo A. Bendek; Camilo Mejia Prada

doi:10.1117/12.2630707

29 August 2022 Advancing deformable mirror controllers for exoplanet imaging

Eduardo A. Bendek, , Camilo Mejia Prada

Proceedings Volume 12180, Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave; 121802E (2022) https://doi.org/10.1117/12.2630707
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

Imaging of an earth analog is a major milestone for the exoplanet science and the instrumentation community. Coronagraphs relay on the DM resolution and stability to be able to achieve contrast of 1e10 at an angular separation of a fraction of an arcsecond. In this paper we describe our experience working with DMs and show that the device resolution and stability are defined by the electronics performance instead of the properties of the DM itself. We describe our effort to advance the DM electronics to achieve 19-bit resolution and long term stability with the goal of overcoming any coronagraph contrast limitations imposed by the driving electronics.

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Eduardo A. Bendek, , and Camilo Mejia Prada "Advancing deformable mirror controllers for exoplanet imaging", Proc. SPIE 12180, Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave, 121802E (29 August 2022); https://doi.org/10.1117/12.2630707

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KEYWORDS

Deformable mirrors

Exoplanets

Coronagraphy

Electronics

Control systems

Earth's atmosphere

Microelectromechanical systems

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