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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 2 — Jan. 15, 2013
  • pp: 133–135

Two-beam interferometer with optical path difference magnified

Liang Zhang, Ping Lu, Deming Liu, Jiangshan Zhang, Shun Wang, and Dajian Wang  »View Author Affiliations


Optics Letters, Vol. 38, Issue 2, pp. 133-135 (2013)
http://dx.doi.org/10.1364/OL.38.000133


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Abstract

A two-beam interferometer is proposed and experimentally demonstrated with OPD magnified. Two cascaded fiber ring resonators with almost the same fiber length are spliced into a fiber loop. An acousto-optic modulator is employed to generate optical pulses and to choose the pulses traveling around one of the resonators for x trips. The interferometer is characterized in displacement in our experiment. Experimental results show the proportional relationship between the sensitivity and x. The high-sensitivity interferometer scheme is useful in some measurement applications that require high sensitivity, such as solid earth tide gauge.

© 2013 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(140.4780) Lasers and laser optics : Optical resonators
(280.4788) Remote sensing and sensors : Optical sensing and sensors

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: October 1, 2012
Revised Manuscript: December 1, 2012
Manuscript Accepted: December 7, 2012
Published: January 8, 2013

Citation
Liang Zhang, Ping Lu, Deming Liu, Jiangshan Zhang, Shun Wang, and Dajian Wang, "Two-beam interferometer with optical path difference magnified," Opt. Lett. 38, 133-135 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-2-133

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