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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 38, Iss. 14 — Jul. 15, 2013
  • pp: 2437–2439

Distributed fiber strain and vibration sensor based on Brillouin optical time-domain reflectometry and polarization optical time-domain reflectometry

Feng Wang, Xuping Zhang, Xiangchuan Wang, and Haisheng Chen  »View Author Affiliations


Optics Letters, Vol. 38, Issue 14, pp. 2437-2439 (2013)
http://dx.doi.org/10.1364/OL.38.002437


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Abstract

A distributed fiber strain and vibration sensor which effectively combines Brillouin optical time-domain reflectometry and polarization optical time-domain reflectometry is proposed. Two reference beams with orthogonal polarization states are, respectively, used to perform the measurement. By using the signal obtained from either reference beam, the vibration of fiber can be measured from the polarization effect. After combining the signals obtained by both reference beams, the strain can be measured from the Brillouin effect. In the experiment, 10 m spatial resolution, 0.6 kHz frequency measurement range, 2.5 Hz frequency resolution, and 0.2 MHz uncertainty of Brillouin frequency measurement are realized for a 4 km sensing distance.

© 2013 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.2400) Fiber optics and optical communications : Fiber properties
(280.4788) Remote sensing and sensors : Optical sensing and sensors

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: April 23, 2013
Revised Manuscript: June 9, 2013
Manuscript Accepted: June 10, 2013
Published: July 5, 2013

Citation
Feng Wang, Xuping Zhang, Xiangchuan Wang, and Haisheng Chen, "Distributed fiber strain and vibration sensor based on Brillouin optical time-domain reflectometry and polarization optical time-domain reflectometry," Opt. Lett. 38, 2437-2439 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-14-2437


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