MEMS practice: from the lab to the telescope
2012
Micro-electro-mechanical systems (MEMS) technology can provide for deformable mirrors (DMs) with excellent
performance within a favorable economy of scale. Large MEMS-based astronomical adaptive optics (AO) systems
such as the Gemini Planet Imager are coming on-line soon. As MEMS DM end-users, we discuss our decade of
practice with the micromirrors, from inspecting and characterizing devices to evaluating their performance in
the lab. We also show MEMS wavefront correction on-sky with the "Villages" AO system on a 1-m telescope,
including open-loop control and visible-light imaging. Our work demonstrates the maturity of MEMS technology
for astronomical adaptive optics.
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