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Easy and straightforward construction of wideband phase-shifting algorithms for interferometry

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Quiroga Mellado, Juan Antonio and Servín Guirado, Manuel and Estrada, Julio César (2009) Easy and straightforward construction of wideband phase-shifting algorithms for interferometry. Optics Letters, 34 (4). pp. 413-415. ISSN 0146-9592

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Official URL: http://dx.doi.org/10.1364/OL.34.000413


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Abstract

We show a practical way for building wideband phase-shifting algorithms for interferometry. The idea presented combines first- and second-order quadrature filters to obtain wideband phase-shifting algorithms. These first- and second-order quadrature filters are analogous to the first- and second-order filters commonly used in communications engineering, named building blocks. We present a systematic way to develop phase-shifting algorithms with large detuning robustness or large bandwidth. In general, the approach presented here gives a powerful frequency analysis and design tool for phase-shifting algorithms robust to detuning for interferometry.


Item Type:Article
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© 2009 Optical Society of America.

Uncontrolled Keywords:Optics
Subjects:Sciences > Physics > Optics
ID Code:22827
Deposited On:19 Sep 2013 07:24
Last Modified:07 Feb 2014 10:52

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