Optical characterization of a low-noise, high-resolution controller for MEMS deformable mirrors for space applications

Kyle Van Gorkom; Ewan S. Douglas; Christian Haughwout; Daewook Kim; Cameron Ard; Kerri Cahoy

doi:10.1117/12.2677878

5 October 2023 Optical characterization of a low-noise, high-resolution controller for MEMS deformable mirrors for space applications

Kyle Van Gorkom, Ewan S. Douglas, Christian Haughwout, Daewook Kim, Cameron Ard, Kerri Cahoy

Author Affiliations +

Proceedings Volume PC12677, Astronomical Optics: Design, Manufacture, and Test of Space and Ground Systems IV; PC126770I (2023) https://doi.org/10.1117/12.2677878
Event: SPIE Optical Engineering + Applications, 2023, San Diego, California, United States

Abstract

The detection and characterization of habitable worlds around other stars is one of the key science goals of future space observatories, a goal that will require high contrast imaging (HCI) instruments capable of starlight suppression to the 10^-10 level. The development of high-resolution, low-noise controllers for high actuator-count DMs will be crucial to achieving this contrast. We report the optical characterization of a MEMS Kilo-C deformable mirror from BMC driven by a custom controller, including the static and dynamic performance of the DM facesheet and the contrast achieved in vacuum with the DM integrated in a high contrast imaging testbed.

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Citation Download Citation

Kyle Van Gorkom, Ewan S. Douglas, Christian Haughwout, Daewook Kim, Cameron Ard, and Kerri Cahoy "Optical characterization of a low-noise, high-resolution controller for MEMS deformable mirrors for space applications", Proc. SPIE PC12677, Astronomical Optics: Design, Manufacture, and Test of Space and Ground Systems IV, PC126770I (5 October 2023); https://doi.org/10.1117/12.2677878

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KEYWORDS

Deformable mirrors

Microelectromechanical systems

Coronagraphy

Equipment

Wavefronts

Control systems

Optical benches

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