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Proceedings Paper

Wavefront control in space with MEMS deformable mirrors
Author(s): Kerri L. Cahoy; Anne D. Marinan; Benjamin Novak; Caitlin Kerr; Matthew Webber
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Paper Abstract

To meet the high contrast requirement of 1 × 10−10 to image an Earth-like planet around a Sun-like star, space telescopes equipped with coronagraphs require wavefront control systems. Deformable mirrors (DMs) are a key element of a wavefront control system, as they correct for imperfections, thermal distortions, and diffraction that would otherwise corrupt the wavefront and ruin the contrast. The goal of the CubeSat Deformable Mirror technology demonstration mission is to test the ability of a microelectromechanical system (MEMS) deformable mirror to perform wavefront control on-orbit on a nanosatellite platform. In this paper, we consider two approaches for a MEMS deformable mirror technology demonstration payload that will fit within the mass, power, and volume constraints of a CubeSat: 1) a Michelson interferometer and 2) a Shack-Hartmann wavefront sensor. We clarify the constraints on the payload based on the resources required for supporting CubeSat subsystems drawn from subsystems that we have developed for a different CubeSat flight project. We discuss results from payload lab prototypes and their utility in defining mission requirements.

Paper Details

Date Published: 5 March 2013
PDF: 16 pages
Proc. SPIE 8617, MEMS Adaptive Optics VII, 861708 (5 March 2013); doi: 10.1117/12.2005685
Show Author Affiliations
Kerri L. Cahoy, Massachusetts Institute of Technology (United States)
Anne D. Marinan, Massachusetts Institute of Technology (United States)
Benjamin Novak, Massachusetts Institute of Technology (United States)
Caitlin Kerr, Massachusetts Institute of Technology (United States)
Matthew Webber, Massachusetts Institute of Technology (United States)

Published in SPIE Proceedings Vol. 8617:
MEMS Adaptive Optics VII
Scot S. Olivier; Thomas G. Bifano; Joel Kubby, Editor(s)

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