Spectral analysis of phase shifting algorithms



Downloads per month over past year

Quiroga Mellado, Juan Antonio and Estrada, Julio César and Servín Guirado, Manuel (2009) Spectral analysis of phase shifting algorithms. Optics Express, 17 (19). pp. 16423-16428. ISSN 1094-4087

[thumbnail of QuirogaJA29.pdf]

Official URL: http://dx.doi.org/10.1364/OE.17.016423


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.

Item Type:Article
Additional Information:

© 2009 Optical Society of America.
We acknowledge the valuable support of the Mexican Science Council, CONACYT.

Uncontrolled Keywords:Interferometry
Subjects:Sciences > Physics > Optics
ID Code:22809
Deposited On:16 Sep 2013 11:55
Last Modified:07 Feb 2014 10:52

Origin of downloads

Repository Staff Only: item control page