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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 23 — Nov. 9, 2009
  • pp: 20777–20782

Optical fiber magnetic field sensors with TbDyFe magnetostrictive thin films as sensing materials

Minghong Yang, Jixiang Dai, Ciming Zhou, and Desheng Jiang  »View Author Affiliations

Optics Express, Vol. 17, Issue 23, pp. 20777-20782 (2009)

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Different from usually-used bulk magnetostrictive materials, magnetostrictive TbDyFe thin films were firstly proposed as sensing materials for fiber-optic magnetic field sensing characterization. By magnetron sputtering process, TbDyFe thin films were deposited on etched side circle of a fiber Bragg Grating (FBG) as sensing element. There exists more than 45pm change of FBG wavelength when magnet field increase up to 50 mT. The response to magnetic field is reversible, and could be applicable for magnetic and current sensing.

© 2009 OSA

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.2430) Fiber optics and optical communications : Fibers, single-mode
(310.6870) Thin films : Thin films, other properties

ToC Category:

Original Manuscript: July 16, 2009
Revised Manuscript: August 11, 2009
Manuscript Accepted: October 23, 2009
Published: October 28, 2009

Minghong Yang, Jixiang Dai, Ciming Zhou, and Desheng Jiang, "Optical fiber magnetic field sensors with TbDyFe magnetostrictive thin films as sensing materials," Opt. Express 17, 20777-20782 (2009)

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