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Proceedings Paper

Performance of a wavefront sensor in the presence of singular points
Author(s): Valerii Aksenov; Igor Izmailov; Feodor Kanev; Feodor Starikov
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Paper Abstract

In the present report the possibility of singular points detections using a Shack-Hartmann sensor is described and the precision of the developed detection algorithm is estimated. Also the algorithms of a singular wave front reconstruction are analyzed. Two algorithms are considered and their properties compared. One of them was developed by D. Fried, its description was found in literature. The second algorithm was developed by authors of the report. The both algorithms were introduced into the software of the sensor and insured satisfactory quality of singular phase reconstruction. The precision of algorithms compared in numerical investigations as well in real laboratory experiments.

Paper Details

Date Published: 15 September 2006
PDF: 6 pages
Proc. SPIE 6341, Speckle06: Speckles, From Grains to Flowers, 634133 (15 September 2006); doi: 10.1117/12.696005
Show Author Affiliations
Valerii Aksenov, Institute of Atmospheric Optics (Russia)
Igor Izmailov, Tomsk State Univ. (Russia)
Feodor Kanev, Tomsk Polytechnical Univ. (Russia)
Feodor Starikov, Russian Federal Nuclear Ctr. VNIIEF (Russia)

Published in SPIE Proceedings Vol. 6341:
Speckle06: Speckles, From Grains to Flowers
Pierre Slangen; Christine Cerruti, Editor(s)

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