Results from the PALM-3000 high-order adaptive optics system
Contributors
Abstract
The first of a new generation of high actuator density AO systems developed for large telescopes, PALM-3000 is optimized for high-contrast exoplanet science but will support operation with natural guide stars as faint as V ~ 18. PALM-3000 began commissioning in June 2011 on the Palomar 200" telescope and has to date over 60 nights of observing. The AO system consists of two Xinetics deformable mirrors, one with 66 by 66 actuators and another with 21 by 21 actuators, a Shack-Hartman WFS with four pupil sampling modes (ranging from 64 to 8 samples across the pupil), and a full vector matrix multiply real-time system capable of running at 2KHz frame rates. We present the details of the completed system, and initial results. Operating at 2 kHz with 8.3cm pupil sampling on-sky, we have achieved a K-band Strehl ratio as high as 84% in ~1.0 arcsecond visible seeing.
Additional Information
© 2012 SPIE. This research was carried out in part at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not constitute or imply its endorsement by the United States Government or the Jet Propulsion Laboratory, California Institute of Technology. This work was also supported by National Science Foundation grant AST-0619922, PI: Dr. R. Dekany. Support for the wavefront reconstructor computer has been provided by the Air Force Office of Sponsored Research, Award #FA9550-06-1-0343 (DURIP FY06). Support for the PALM-3000 3388 actuator DM was provided by a NASA Small Business Innovation Research grant #NNG06CA21C.Attached Files
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Additional details
Identifiers
- Eprint ID
- 71441
- Resolver ID
- CaltechAUTHORS:20161025-095637834
Funding
- NASA/JPL/Caltech
- NSF
- AST-0619922
- Air Force Office of Sponsored Research (AFOSR)
- FA9550-06-1-0343
- NASA
- NNG06CA21C
Dates
- Created
-
2016-10-25Created from EPrint's datestamp field
- Updated
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2021-11-11Created from EPrint's last_modified field
Caltech Custom Metadata
- Series Name
- Proceedings of SPIE
- Series Volume or Issue Number
- 8447