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Optics Letters

Optics Letters

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  • Vol. 24, Iss. 18 — Sep. 15, 1999
  • pp: 1272–1274

Robust one-beam interferometer with phase-delay control

José A. Ferrari, Erna M. Frins, Daniel Perciante, and Alfredo Dubra  »View Author Affiliations


Optics Letters, Vol. 24, Issue 18, pp. 1272-1274 (1999)
http://dx.doi.org/10.1364/OL.24.001272


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Abstract

A robust one-beam interferometer with external phase-delay control is described. The device resembles a Mach–Zehnder interferometer in which the two arms are together in one collimated beam. However, the proposed device is not an amplitude-division interferometer but a wave-front division one. The phase-delay control occurs at the interferometer output with the help of two polarizing beam splitters, a quarter-wave plate, a Faraday rotator, and a polarizer. An additional phase delay is introduced by application of an electrical current to the Faraday rotator or by rotation of the polarizer (the latter is of topological origin), which permits the use of techniques of phase-stepping interferometry.

© 1999 Optical Society of America

OCIS Codes
(050.5080) Diffraction and gratings : Phase shift
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(260.5740) Physical optics : Resonance
(350.5030) Other areas of optics : Phase

Citation
José A. Ferrari, Erna M. Frins, Daniel Perciante, and Alfredo Dubra, "Robust one-beam interferometer with phase-delay control," Opt. Lett. 24, 1272-1274 (1999)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-24-18-1272

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