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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 38, Iss. 9 — May. 1, 2013
  • pp: 1539–1541

All-fiber magnetic field sensors based on magnetic fluid-filled photonic crystal fibers

R. Gao, Y. Jiang, and S. Abdelaziz  »View Author Affiliations


Optics Letters, Vol. 38, Issue 9, pp. 1539-1541 (2013)
http://dx.doi.org/10.1364/OL.38.001539


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Abstract

A method for measurement of a magnetic field by combining photonic crystal fibers (PCFs) and magnetic fluid is presented and experimentally demonstrated. The magnetic fluid is filled into the air holes of the cladding layer in the PCF. Due to the tunable refractive index property of the magnetic fluid, the refractive index difference between the fiber core and cladding layer is changed with the external magnetic field. The magnetic field can be directly detected by measuring the intensity of the transmission light. A series of magnetic fields with different strengths have been measured with the sensor. The experimental results show that a resolution of up to 0.09 Oe is achieved, and a good repetition is demonstrated experimentally. Compared with other expensive methods, the proposed method possesses high sensitivity and low cost.

© 2013 Optical Society of America

OCIS Codes
(160.3820) Materials : Magneto-optical materials
(230.1150) Optical devices : All-optical devices
(230.3810) Optical devices : Magneto-optic systems
(060.5295) Fiber optics and optical communications : Photonic crystal fibers

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: March 15, 2013
Revised Manuscript: April 3, 2013
Manuscript Accepted: April 3, 2013
Published: April 29, 2013

Citation
R. Gao, Y. Jiang, and S. Abdelaziz, "All-fiber magnetic field sensors based on magnetic fluid-filled photonic crystal fibers," Opt. Lett. 38, 1539-1541 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-9-1539


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