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Proceedings Paper

Multiple guide star tomography demonstration at Palomar Observatory
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Paper Abstract

We have built and field tested a multiple guide star tomograph with four Shack-Hartmann wavefront sensors. We predict the wavefront on the fourth sensor channel estimated using wavefront information from the other three channels using synchronously recorded data. This system helps in the design of wavefront sensors for future extremely large telescopes that will use multi conjugate adaptive optics and multi object adaptive optics. Different wavefront prediction algorithms are being tested with the data obtained. We describe the system, its current capabilities and some preliminary results.

Paper Details

Date Published: 27 June 2006
PDF: 9 pages
Proc. SPIE 6272, Advances in Adaptive Optics II, 62725C (27 June 2006); doi: 10.1117/12.671666
Show Author Affiliations
V. Velur, California Institute of Technology (United States)
R. C. Flicker, W.M. Keck Observatory (United States)
B. C. Platt, Jet Propulsion Lab. (United States)
M. C. Britton, California Institute of Technology (United States)
R. G. Dekany, California Institute of Technology (United States)
M. Troy, Jet Propulsion Lab. (United States)
J. E. Roberts, Jet Propulsion Lab. (United States)
J. C. Shelton, Jet Propulsion Lab. (United States)
J. Hickey, Palomar Observatory (United States)

Published in SPIE Proceedings Vol. 6272:
Advances in Adaptive Optics II
Brent L. Ellerbroek; Domenico Bonaccini Calia, Editor(s)

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