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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 53, Iss. 13 — May. 1, 2014
  • pp: 2833–2838

Distributed optical fiber dynamic magnetic field sensor based on magnetostriction

Ali Masoudi and Trevor P. Newson  »View Author Affiliations

Applied Optics, Vol. 53, Issue 13, pp. 2833-2838 (2014)

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A distributed optical fiber sensor is introduced which is capable of quantifying multiple magnetic fields along a 1 km sensing fiber with a spatial resolution of 1 m. The operation of the proposed sensor is based on measuring the magnetorestrictive induced strain of a nickel wire attached to an optical fiber. The strain coupled to the optical fiber was detected by measuring the strain-induced phase variation between the backscattered Rayleigh light from two segments of the sensing fiber. A magnetic field intensity resolution of 0.3 G over a bandwidth of 50–5000 Hz was demonstrated.

© 2014 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(290.5870) Scattering : Scattering, Rayleigh

ToC Category:
Remote Sensing and Sensors

Original Manuscript: January 22, 2014
Revised Manuscript: March 20, 2014
Manuscript Accepted: March 29, 2014
Published: April 24, 2014

Ali Masoudi and Trevor P. Newson, "Distributed optical fiber dynamic magnetic field sensor based on magnetostriction," Appl. Opt. 53, 2833-2838 (2014)

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