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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 33 — Nov. 20, 2009
  • pp: 6466–6469

Miniature high-sensitivity high-temperature fiber sensor with a dispersion compensation fiber-based interferometer

Bo Dong, Li Wei, and Da-Peng Zhou  »View Author Affiliations

Applied Optics, Vol. 48, Issue 33, pp. 6466-6469 (2009)

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A miniature high-sensitivity, high-temperature fiber sensor with an interferometer based on a bare small-core-diameter dispersion compensation fiber (DCF) is reported. The sensing head is a single-mode-fiber (SMF) DCF configuration formed by a 4 mm long bare DCF with one end connected to the SMF by a fusion splicing technique and the other end cleaved. Due to the large mode index difference and high thermo-optic coefficient induced by two dominative interference modes, a miniature high- temperature fiber sensor with a high sensitivity of 68.6 pm / ° C is obtained by monitoring the wavelength shift of the interference spectrum. This type of sensor has the features of small size, high sensitivity, high stability, simple structure, and low cost.

© 2009 Optical Society of America

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2370) Fiber optics and optical communications : Fiber optics sensors

ToC Category:
Fiber Optics

Original Manuscript: August 13, 2009
Revised Manuscript: October 25, 2009
Manuscript Accepted: October 30, 2009
Published: November 12, 2009

Bo Dong, Li Wei, and Da-Peng Zhou, "Miniature high-sensitivity high-temperature fiber sensor with a dispersion compensation fiber-based interferometer," Appl. Opt. 48, 6466-6469 (2009)

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