Phase-shifting common-path interferometer with binary grating: application on optical tomography

Cruz Meneses-Fabian; Gustavo Rodriguez-Zurita; V. Arrizon

doi:10.1117/12.669363

8 June 2006 Phase-shifting common-path interferometer with binary grating: application on optical tomography

Cruz Meneses-Fabian, Gustavo Rodriguez-Zurita, V. Arrizon

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Proceedings Volume 6018, 5th International Workshop on Adaptive Optics for Industry and Medicine; 60180X (2006) https://doi.org/10.1117/12.669363
Event: 5th International Workshop on Adaptive Optics for Industry and Medicine, 2005, Beijing, China

Abstract

An experimental setup for phase extraction of 2-D phase distributions is presented. The system uses a common-path interferometer consisting of two windows in the input plane and a translating grating as its pupil. In the output, interference of the fields associated with replicated windows is achieved by a proper choice of the windows spacing with respect to the grating period. Because in this type of interferometer a grating is placed as a spatial filter, the phase changes which are needed for phase-shifting interferometry can be easily performed with translations of the grating driven by a linear actuator. Some experimental results as well as applications on Optical Tomography are shown.

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Cruz Meneses-Fabian, Gustavo Rodriguez-Zurita, and V. Arrizon "Phase-shifting common-path interferometer with binary grating: application on optical tomography", Proc. SPIE 6018, 5th International Workshop on Adaptive Optics for Industry and Medicine, 60180X (8 June 2006); https://doi.org/10.1117/12.669363

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