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Proceedings Paper

Extended wavefront sensing with novel diversity functions
Author(s): Heather I. Campbell; Sijiong Zhang; Alan H. Greenaway
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Paper Abstract

Generalized Phase Diversity (GPD) is a phase retrieval algorithm which requires a pair of intensity images. These are created by applying equal and opposite diversity phase to the input wavefront. Unlike traditional phase diversity methods GPD is not limited to the use of defocus as the applied diversity phase. The conditions that a suitable diversity function must satisfy for use in a null sensor were presented at the 4th IWAOIM. Following our recent development of a small angle solution to the inverse problem, in this paper the GPD method will be extended to use as a full wavefront sensor. This method has a wide range of applications, including laser beam shaping, analysis of segmented optics, and metrology. Results will be presented to show the versatility and accuracy of this novel wavefront sensing method.

Paper Details

Date Published: 8 June 2006
PDF: 9 pages
Proc. SPIE 6018, 5th International Workshop on Adaptive Optics for Industry and Medicine, 60180O (8 June 2006); doi: 10.1117/12.669288
Show Author Affiliations
Heather I. Campbell, Heriot-Watt Univ. (United Kingdom)
Sijiong Zhang, Heriot-Watt Univ. (United Kingdom)
Alan H. Greenaway, Heriot-Watt Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 6018:
5th International Workshop on Adaptive Optics for Industry and Medicine
Wenhan Jiang, Editor(s)

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