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Proceedings Paper

Error propagation in curvature sensors
Author(s): Aglaé Kellerer; Mark Chun; Christ Ftaclas
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Paper Abstract

The effect of measurement noise on the phase reconstruction is here analyzed for curvature sensors. It is shown, that for a fixed extra-focal distance the phase variance depends only on the number of photons and is independent of the number of sensing elements. The error propagation factor is further computed for three different sampling geometries: square and hexagonal grids and the polar geometry commonly used for curvature sensors. The error propagation factor is seen to be almost independent of the grid geometry.

Paper Details

Date Published: 28 July 2010
PDF: 9 pages
Proc. SPIE 7736, Adaptive Optics Systems II, 773658 (28 July 2010); doi: 10.1117/12.856641
Show Author Affiliations
Aglaé Kellerer, Univ. of Hawai'i (United States)
Mark Chun, Univ. of Hawai'i (United States)
Christ Ftaclas, Univ. of Hawai'i (United States)

Published in SPIE Proceedings Vol. 7736:
Adaptive Optics Systems II
Brent L. Ellerbroek; Michael Hart; Norbert Hubin; Peter L. Wizinowich, Editor(s)

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