Optical path difference measurements with a two-step parallel phase shifting interferometer based on a modified Michelson configuration

Noel Ivan Toto-Arellano; David I. Serrano-Garcia; Gustavo Rodriguez-Zurita

doi:10.1117/1.OE.56.9.094107

12 September 2017 Optical path difference measurements with a two-step parallel phase shifting interferometer based on a modified Michelson configuration

Noel Ivan Toto-Arellano, David I. Serrano-Garcia, Gustavo Rodriguez-Zurita

Author Affiliations +

Funded by: The Initiative for the Creation of the First Optics and Photonics Engineering in México, Utsunomiya University, Japan, National Council on Science and Technology (CONACYT)

Optical Engineering, Vol. 56, Issue 9, 094107 (September 2017). https://doi.org/10.1117/1.OE.56.9.094107

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.

Citation Download Citation

Noel Ivan Toto-Arellano, David I. Serrano-Garcia, and Gustavo Rodriguez-Zurita "Optical path difference measurements with a two-step parallel phase shifting interferometer based on a modified Michelson configuration," Optical Engineering 56(9), 094107 (12 September 2017). https://doi.org/10.1117/1.OE.56.9.094107

Received: 4 May 2017; Accepted: 14 August 2017; Published: 12 September 2017

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