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Proceedings Paper

Full-system laboratory testing of the F/15 deformable secondary mirror for the new MMT adaptive optics system
Author(s): Patrick C. McGuire; Michael Lloyd-Hart; James Roger P. Angel; George Z. Angeli; Robert L. Johnson; Bruce C. Fitz-Patrick; Warren B. Davison; Roland J. Sarlot; Cynthia J. Bresloff; John M. Hughes; Stephen M. Miller; Skip Schaller; Francois P. Wildi; Matthew A. Kenworthy; Richard M. Cordova; Matthew J. Rademacher; Mario H. Rascon; James H. Burge; Brian L. Stamper; Chunyu Zhao; Piero Salinari; Ciro Del Vecchio; Armando Riccardi; Guido Brusa-Zappellini; Roberto Biasi; Mario Andrighettoni; Daniele Gallieni; Claudio Franchini; David G. Sandler; Todd K. Barrett
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Paper Abstract

We will present a system to perform closed-loop optical tests of the 64 cm diameter, 336 actuator adaptive secondary made at the Steward Observatory Mirror Laboratory. Testing will include Shack-Hartmann wavefront sensing and modal correction of static and dynamic aberrated wavefronts. The test optical system is designed so that experiments can be made with both the focal plane instrument and secondary installed in their normal configuration at the MMT, or with the same 9 m spacing in a laboratory test tower. The convex secondary will be illuminated at normal incidence through two 70 cm diameter lenses mounted just below. The artificial, aberrated star is projected from near the wavefront sensor in the Cassegrain focus assembly. Computer generated holograms correct for spherical aberration in the really optics at the test wavelengths of 0.594 and 1.5 micrometers . Atmospheric turbulence is reproduced by two spinning transmission plates imprinted with Kolmogorov turbulence. The Shimmulator will give us the opportunity to test fully the adaptive optics system before installation at the new MMT, hence saving much precious telescope time.

Paper Details

Date Published: 27 September 1999
PDF: 10 pages
Proc. SPIE 3762, Adaptive Optics Systems and Technology, (27 September 1999); doi: 10.1117/12.363598
Show Author Affiliations
Patrick C. McGuire, Steward Observatory/Univ. of Arizona (Spain)
Michael Lloyd-Hart, Steward Observatory/Univ. of Arizona (United States)
James Roger P. Angel, Steward Observatory/Univ. of Arizona (United States)
George Z. Angeli, Steward Observatory/Univ. of Arizona (United States)
Robert L. Johnson, Steward Observatory/Univ. of Arizona (United States)
Bruce C. Fitz-Patrick, Steward Observatory/Univ. of Arizona (United States)
Warren B. Davison, Univ. of Arizona (United States)
Roland J. Sarlot, Steward Observatory/Univ. of Arizona (United States)
Cynthia J. Bresloff, Steward Observatory/Univ. of Arizona (United States)
John M. Hughes, Steward Observatory/Univ. of Arizona (United States)
Stephen M. Miller, Steward Observatory/Univ. of Arizona (United States)
Skip Schaller, Steward Observatory/Univ. of Arizona (United States)
Francois P. Wildi, Steward Observatory/Univ. of Arizona (United States)
Matthew A. Kenworthy, Steward Observatory/Univ. of Arizona (United States)
Richard M. Cordova, Steward Observatory/Univ. of Arizona (United States)
Matthew J. Rademacher, Steward Observatory/Univ. of Arizona (United States)
Mario H. Rascon, Steward Observatory/Univ. of Arizona (United States)
James H. Burge, Optical Sciences Ctr./Univ. of Arizona (United States)
Brian L. Stamper, Optical Sciences Ctr./Univ. of Arizona (United States)
Chunyu Zhao, Optical Sciences Ctr./Univ. of Arizona (United States)
Piero Salinari, Osservatorio Astrofisico di Arcetri (Italy)
Ciro Del Vecchio, Osservatorio Astrofisico di Arcetri (Italy)
Armando Riccardi, Osservatorio Astrofisico di Arcetri (Italy)
Guido Brusa-Zappellini, Osservatorio Astrofisico di Arcetri (United States)
Roberto Biasi, Microgate S.r.L. (Italy)
Mario Andrighettoni, Microgate S.r.L. (Italy)
Daniele Gallieni, ADS International S.r.L (Italy)
Claudio Franchini, Media Lario S.r.L. (Italy)
David G. Sandler, ThermoTrex Corp. (United States)
Todd K. Barrett, ThermoTrex Corp. (United States)


Published in SPIE Proceedings Vol. 3762:
Adaptive Optics Systems and Technology
Robert K. Tyson; Robert Q. Fugate, Editor(s)

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