CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 12185 > Article
Poster + Paper
29 August 2022 Visible extreme adaptive optics for GMagAO-X with the triple-stage AO architecture (TSAO)
Sebastiaan Y. Haffert, Jared R. Males, Laird M. Close, Olivier Guyon, Alexander Hedglen, Maggie Kautz
Author Affiliations +
Proceedings Volume 12185, Adaptive Optics Systems VIII; 121853D (2022) https://doi.org/10.1117/12.2630222
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada
Conference Poster
Abstract
The Extremely Large Telescopes will require hundreds of actuators across the pupil for high Strehl in the visible. We envision a triple-stage AO (TSAO) system for GMT/GMagAO-X to achieve this. The first stage is a 4K DM controlled by an IR pyramid wavefront sensor that provides the first order correction. The second stage contains the high-order parallel DM of GMagAO-X that has 21000 actuators and contains an interferometric delay line for phasing of each mirror segment. This stage uses a Zernike wavefront sensor for high-order modes and a Holographic Dispersed Fringe Sensor for segment piston control. Finally, the third stage uses a dedicated 3K dm for non-common path aberration control and the coronagraphic wavefront control by using focal plane wavefront sensing and control. The triple stage architecture has been chosen to create simpler decoupled control loops. This work describes the performance of the proposed triple-stage AO architecture for ExAO with GMagAO-X.
© (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Sebastiaan Y. Haffert, Jared R. Males, Laird M. Close, Olivier Guyon, Alexander Hedglen, and Maggie Kautz "Visible extreme adaptive optics for GMagAO-X with the triple-stage AO architecture (TSAO)", Proc. SPIE 12185, Adaptive Optics Systems VIII, 121853D (29 August 2022); https://doi.org/10.1117/12.2630222
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
INSTITUTIONAL
Select your institution to access the SPIE Digital Library.
SELECT YOUR INSTITUTION
PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
PERSONAL SIGN IN
No SPIE Account? Create one
;
PURCHASE THIS CONTENT
SUBSCRIBE TO DIGITAL LIBRARY
50 downloads per 1-year subscription
Members: $195
Non-members: $335 ADD TO CART
25 downloads per 1 - year subscription
Members: $145
Non-members: $250 ADD TO CART
PURCHASE SINGLE ARTICLE
Includes PDF, HTML & Video, when available
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 9 PAGES + POSTER
DOWNLOAD PAPER SAVE TO MY LIBRARY
DOWNLOAD
POSTER
GET CITATION
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Wavefront sensors
Adaptive optics
Coronagraphy
Planets
Exoplanets
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top