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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 19 — Oct. 1, 2013
  • pp: 3765–3768

Magnetic field sensing based on singlemode–multimode–singlemode fiber structures using magnetic fluids as cladding

Haotian Wang, Shengli Pu, Ning Wang, Shaohua Dong, and Juan Huang  »View Author Affiliations

Optics Letters, Vol. 38, Issue 19, pp. 3765-3768 (2013)

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Magnetic field sensing based on magnetic fluid (MF) and a singlemode–multimode–singlemode (SMS) fiber structure is proposed. The sensitivity of the proposed sensing system can be enhanced by corroding the cladding of the multimode fiber of the SMS fiber structure. The achieved maximum magnetic field sensitivity of our experimental structures is 16.86pm/Oe as the fiber is corroded for 1680 s. The visibility of the interference dip for the MF-clad SMS fiber structure decreases with corrosion time. Considering the trade-off between sensitivity and visibility, the figure of merit of the sensing system is employed to evaluate the sensing performance comprehensively. In our experiments, the structure corroded for 1620s is found to have maximum sensing performance.

© 2013 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(160.3820) Materials : Magneto-optical materials
(230.1150) Optical devices : All-optical devices
(230.3810) Optical devices : Magneto-optic systems

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: June 20, 2013
Revised Manuscript: August 15, 2013
Manuscript Accepted: August 22, 2013
Published: September 19, 2013

Haotian Wang, Shengli Pu, Ning Wang, Shaohua Dong, and Juan Huang, "Magnetic field sensing based on singlemode–multimode–singlemode fiber structures using magnetic fluids as cladding," Opt. Lett. 38, 3765-3768 (2013)

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