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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 37, Iss. 15 — Aug. 1, 2012
  • pp: 3213–3215

Common-path interferometer with a tri-window

Bengong Hao, Mingguang Shan, Ming Diao, Zhi Zhong, and Hongwen Ma  »View Author Affiliations


Optics Letters, Vol. 37, Issue 15, pp. 3213-3215 (2012)
http://dx.doi.org/10.1364/OL.37.003213


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Abstract

A common-path interferometer is proposed with a tri-window. It is built using a 4f optical system with Ronchi ruling as a spatial filter. The input rectangular aperture is formed by three windows; the central window supports a phase object, and the other two are used for reference beams. Using an appropriate grating period relative to input aperture size, an interferogram containing three patterns can be obtained in the output plane. The object phase can then be reconstructed from the three patterns using just one interferogram. The experiments are carried out to demonstrate the feasibility and reliability of the proposed scheme.

© 2012 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(070.0070) Fourier optics and signal processing : Fourier optics and signal processing
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.5050) Instrumentation, measurement, and metrology : Phase measurement

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: March 1, 2012
Revised Manuscript: June 29, 2012
Manuscript Accepted: June 30, 2012
Published: July 26, 2012

Citation
Bengong Hao, Mingguang Shan, Ming Diao, Zhi Zhong, and Hongwen Ma, "Common-path interferometer with a tri-window," Opt. Lett. 37, 3213-3215 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-15-3213


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