Abstract

A $32\times 32$ microelectricalmechanical systems mirror is controlled in a closed-loop adaptive optics test bed with a spatially filtered wavefront sensor (WFS), Fourier transform wavefront reconstruction, and calibration of references with a high-precision interferometer. When correcting the inherent aberration of the mirror, $0.7\mathrm{nm}$ rms phase error in the controllable band is achieved. When correcting an etched phase plate with atmospheric statistics, a dark hole ${10}^3$ deeper than the uncontrollable phase is produced in the phase power spectral density. Compensation of the mirror’s influence function is done with a Fourier filter, which results in improved loop convergence. Use of the spatial filter is shown to reduce the gain variability of the WFS in a quadcell configuration.

© 2008 Optical Society of America

Experimental demonstration of phase correction with a 32×32 microelectromechanical systems mirror and a spatially filtered wavefront sensor

Lisa A. Poyneer, Brian Bauman, Bruce A. Macintosh, Daren Dillon, and Scott Severson
Opt. Lett. 31(3) 293-295 (2006)

Performance of the Gemini Planet Imager’s adaptive optics system

Lisa A. Poyneer, David W. Palmer, Bruce Macintosh, Dmitry Savransky, Naru Sadakuni, Sandrine Thomas, Jean-Pierre Véran, Katherine B. Follette, Alexandra Z. Greenbaum, S. Mark Ammons, Vanessa P. Bailey, Brian Bauman, Andrew Cardwell, Daren Dillon, Donald Gavel, Markus Hartung, Pascale Hibon, Marshall D. Perrin, Fredrik T. Rantakyrö, Anand Sivaramakrishnan, and Jason J. Wang
Appl. Opt. 55(2) 323-340 (2016)

Laboratory demonstration of the prediction of wind-blown turbulence by adaptive optics at 8  kHz with use of LQG control

Lisa A. Poyneer, S. Mark Ammons, Mike K. Kim, Brian Bauman, Jesse Terrel-Perez, Aaron J. Lemmer, and Jayke Nguyen
Appl. Opt. 62(8) 1871-1885 (2023)

Fourier transform wavefront control with adaptive prediction of the atmosphere

Lisa A. Poyneer, Bruce A. Macintosh, and Jean-Pierre Véran
J. Opt. Soc. Am. A 24(9) 2645-2660 (2007)

Amplitude variations on a MEMS-based extreme adaptive optics coronagraph testbed

Sandrine Thomas, Julia W. Evans, Donald Gavel, Daren Dillon, and Bruce Macintosh
Appl. Opt. 48(21) 4077-4089 (2009)