Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

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

Not Accessible

Your library or personal account may give you access

Abstract

A 32×32 microelectromechanical systems deformable mirror is controlled in closed loop with a spatially filtered Shack–Hartmann wavefront sensor and a Fourier-transform wavefront reconstruction algorithm. A phase plate based on atmospheric turbulence statistics is used to generate a 1μm peak–valley static phase aberration. Far-field images and direct phase measurements of the residual are used to compare performance with and without the spatial filter. Use of the spatial filter reduces error in the controllable band from 20 to 6 nm rms. Residual phase power is reduced by more than a factor of 5 for all spatial frequencies up to 0.85×12d, with a maximum attenuation factor of 37.

© 2006 Optical Society of America

Full Article  |  PDF Article
More Like This
Laboratory demonstration of accurate and efficient nanometer-level wavefront control for extreme adaptive optics

Lisa A. Poyneer, Daren Dillon, Sandrine Thomas, and Bruce A. Macintosh
Appl. Opt. 47(9) 1317-1326 (2008)

Spatially filtered wave-front sensor for high-order adaptive optics

Lisa A. Poyneer and Bruce Macintosh
J. Opt. Soc. Am. A 21(5) 810-819 (2004)

Demonstrating sub-nm closed loop MEMS flattening

Julia W. Evans, Bruce Macintosh, Lisa Poyneer, Katie Morzinski, Scott Severson, Daren Dillon, Donald Gavel, and Layra Reza
Opt. Express 14(12) 5558-5570 (2006)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved