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Proceedings Paper

Fourier analysis of two-run-times-two-frame phase shift algorithm
Author(s): Xianghong Zhong
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Paper Abstract

Two-run-times-two-frame phase shift method is reviewed and a new phase retrieval algorithm is proposed. The properties of two phase retrieval algorithms are discussed from the point of view of Fourier analysis. Analysis shows that the two algorithms are equivalently sensitive to phase-shifter miscalibration and irreproducibility, and the amplitude of phase error depends on the average phase-step error. The influences of the signal harmonics on phase measurement rely on the phase shift of the object beam. The effects of random noise on the two algorithms are generally different, but the same only when the phase step of the reference beam is equal to Π/2.

Paper Details

Date Published: 14 September 2007
PDF: 12 pages
Proc. SPIE 6671, Optical Manufacturing and Testing VII, 66711E (14 September 2007); doi: 10.1117/12.733011
Show Author Affiliations
Xianghong Zhong, Shanghai Institute of Optics and Fine Mechanics (China)

Published in SPIE Proceedings Vol. 6671:
Optical Manufacturing and Testing VII
James H. Burge; Oliver W. Faehnle; Ray Williamson, Editor(s)

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