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Proceedings Paper

Segmented aperture system wavefront error sensing and correction experiments at BATC
Author(s): Paul D. Atcheson; Timothy C. Towell; Phillip C. Quigley
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Paper Abstract

BATC has developed a laboratory testbed specifically designed to evaluate the relative merits of wavefront sensing and correction algorithms for active optical systems. The testbed includes a point source, a segmented aperture input with four independently alignable rigid segments, and a sensor assembly that simultaneously provides numerous wavefront and image sensing capabilities. This Wavefront Control Testbed has been used to conduct a series of experiments designed to compare and quantify various techniques for measuring and removing the wavefront errors in a segmented aperture optical system. The results of these experiments are used to support the top-level definition of the wavefront control system that can be used for ensuring the optical performance of large space-based observatories such as the Next Generation Space Telescope. A short description of the experimental parameters and results is presented, along with the expected future use of the testbed.

Paper Details

Date Published: 29 October 1999
PDF: 10 pages
Proc. SPIE 3785, Advanced Telescope Design, Fabrication, and Control, (29 October 1999); doi: 10.1117/12.367619
Show Author Affiliations
Paul D. Atcheson, Ball Aerospace & Technologies Corp. (United States)
Timothy C. Towell, Ball Aerospace & Technologies Corp. (United States)
Phillip C. Quigley, Ball Aerospace & Technologies Corp. (United States)

Published in SPIE Proceedings Vol. 3785:
Advanced Telescope Design, Fabrication, and Control
William Roybal, Editor(s)

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