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Proceedings Paper

Influence functions of a deformable mirror: least-squares wave-front fitting
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Paper Abstract

A continuous-face-sheet Xinetics deformable mirror (DM) is characterized and analyzed using Fizeau interferometer measurements. The influence of each individual actuator on the DM surface is measured. The measured data is then processed to be used as influence functions that define the influence of each actuator on the DM surface. Using the measured data as a spanning set, an orthonormal basis is computed for the span of the set using singular value decomposition. Real surface measurements are taken of the orthonormal basis influences to test for both linear independence of the actuators and actuator linearity with respect to voltage. The efficacy of using the measured basis function data to converge toward a more accurate basis in an iterative process is evaluated. Performance of lower rank (compressed) bases are also evaluated.

Paper Details

Date Published: 18 September 2018
PDF: 9 pages
Proc. SPIE 10772, Unconventional and Indirect Imaging, Image Reconstruction, and Wavefront Sensing 2018, 1077205 (18 September 2018); doi: 10.1117/12.2321189
Show Author Affiliations
Barton Plimmer, Applied Technology Associates (United States)
David Dayton, Applied Technology Associates (United States)
Mark Spencer, Air Force Research Lab. (United States)
Arthur Hassall, Air Force Research Lab. (United States)

Published in SPIE Proceedings Vol. 10772:
Unconventional and Indirect Imaging, Image Reconstruction, and Wavefront Sensing 2018
Jean J. Dolne; Philip J. Bones, Editor(s)

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