Near-infrared pyramid wavefront sensor for Keck adaptive optics: opto-mechanical design
Abstract
A near-infrared, high order pyramid wavefront sensor will be implemented on the Keck telescope, with the aim of providing high resolution adaptive optics correction for the study of exoplanets around M-type stars and planet formation in obscured star forming regions. The pyramid wavefront sensor is designed to support adaptive optics correction of the light to an imaging vortex coronagraph and to a fiber injection unit that will feed a spectrograph. We present the opto-mechanical design of the near-infrared pyramid wavefront sensor, the optical performance, and the alignment strategy. The challenges of designing the assembly, as well as a fiber injection unit, to fit into the limited available space on the Keck adaptive optics bench, will also be discussed.
Additional Information
© 2018 Society of Photo-Optical Instrumentation Engineers (SPIE). The near-infrared pyramid wavefront sensor is supported by the National Science Foundation under Grant No. AST-1611623. The camera used with the pyramid wavefront sensor is provided by Don Hall with support by the National Science Foundation under Grant No. AST-1106391. The fiber injection unit is supported by the Heising-Simons Foundation. The W. M. Keck Observatory is operated as a scientific partnership among the California Institute of Technology, the University of California, and the National Aeronautics and Space Administration. The Observatory was made possible by the generous financial support of the W. M. Keck Foundation. The authors wish to recognize and acknowledge the very significant cultural role and reverence that the summit of Maunakea has always had within the indigenous Hawaiian community. We are most fortunate to have the opportunity to conduct observations from this mountainAttached Files
Published - 107033G.pdf
Files
| Name | Size | Download all |
|---|---|---|
|
md5:0bd93a1630f5f695defd3cb7a83ebfca
|
1.4 MB | Preview Download |
Additional details
- Eprint ID
- 87814
- Resolver ID
- CaltechAUTHORS:20180712-154840322
- NSF
- AST-1611623
- Heising-Simons Foundation
- NSF
- AST-1106391
- W. M. Keck Foundation
- Created
-
2018-07-13Created from EPrint's datestamp field
- Updated
-
2021-11-15Created from EPrint's last_modified field
- Caltech groups
- Astronomy Department
- Series Name
- Proceedings of SPIE
- Series Volume or Issue Number
- 10703