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Optical path difference measurements with a two-step parallel phase shifting interferometer based on a modified Michelson configuration
Author(s): Noel Ivan Toto-Arellano; David I. Serrano-Garcia; Gustavo Rodriguez-Zurita
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Paper Abstract

We report an optical implementation of a parallel phase-shifting quasi-common path interferometer using two modified Michelson interferometers to generate two interferograms. By using a displaceable polarizer’s array, placed on the image plane, we can obtain four phase-shifted interferograms in two captures. The system operates as a quasi-common path interferometer generating four beams, which are to interfere with alignment procedures on the mirrors of the Michelson configurations. The optical phase data are retrieved using the well-known four-step algorithms. To present the capabilities of the system, experimental results obtained from transparent structures are presented.

Paper Details

Date Published: 12 September 2017
PDF: 6 pages
Opt. Eng. 56(9) 094107 doi: 10.1117/1.OE.56.9.094107
Published in: Optical Engineering Volume 56, Issue 9
Show Author Affiliations
Noel Ivan Toto-Arellano, Univ. Tecnológica de Tulancingo (Mexico)
David I. Serrano-Garcia, Utsunomiya Univ. (Japan)
Univ. de Guadalajara (Mexico)
Gustavo Rodriguez-Zurita, Univ. Autónoma de Puebla (Mexico)

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