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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 19 — Sep. 14, 2009
  • pp: 16423–16428

Spectral analysis of phase
shifting algorithms

M. Servin, J. C. Estrada, and J. A. Quiroga  »View Author Affiliations


Optics Express, Vol. 17, Issue 19, pp. 16423-16428 (2009)
http://dx.doi.org/10.1364/OE.17.016423


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Abstract

Systematic spectral analysis of Phase Shifting Interferometry (PSI) algorithms was first proposed in 1990 by Freischlad and Koliopoulos (F&K). This analysis was proposed with the intention that “in a glance” the main properties of the PSI algorithms would be highlighted. However a major drawback of the F&K spectral analysis is that it changes when the PSI algorithm is rotated or its reference signal is time-shifted. In other words, the F&K spectral plot is different when the PSI algorithm is rotated or its reference is time-shifted. However, it is well known that these simple operations do not alter the basic phase demodulation properties of PSI algorithms, except for an unimportant piston. Here we propose a new way to analyze the spectra of PSI algorithms which is invariant to rotation and/or reference time-shift among other advantages over the nowadays standard PSI spectral analysis by F&K.

© 2009 OSA

OCIS Codes
(120.2650) Instrumentation, measurement, and metrology : Fringe analysis
(120.3180) Instrumentation, measurement, and metrology : Interferometry

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: May 26, 2009
Revised Manuscript: August 14, 2009
Manuscript Accepted: August 15, 2009
Published: August 31, 2009

Citation
M. Servin, J. C. Estrada, and J. A. Quiroga, "Spectral analysis of phase
shifting algorithms," Opt. Express 17, 16423-16428 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-19-16423


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