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Chinese Optics Letters

Chinese Optics Letters


  • Vol. 2, Iss. 10 — Oct. 10, 2004
  • pp: 562–564

Active temperature compensation design of sensor with fiber gratings

Xingfa Dong, Yonglin Huang, Li Jiang, Guiyun Kai, and Xiaoyi Dong  »View Author Affiliations

Chinese Optics Letters, Vol. 2, Issue 10, pp. 562-564 (2004)

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A technique for compensation of temperature effects in fiber grating sensors is reported. For strain sensors and other sensors related to strain such as electromagnetic sensors, a novel structure is designed, which uses two fiber Bragg gratings (FBGs) as strain differential sensor and has temperature effects cancelled. Using this technique, the stress sensitivity has been amplified and gets up to 0.226 nm/N, the total variation in wavelength difference within the range of 3-45 oC is 0.03 nm, 1/14 of the uncompensated FBG. The structure can be used in the temperature-insensitive static strain measurement and minor-vibration measurement.

© 2005 Chinese Optics Letters

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(060.2340) Fiber optics and optical communications : Fiber optics components
(060.2370) Fiber optics and optical communications : Fiber optics sensors

Xingfa Dong, Yonglin Huang, Li Jiang, Guiyun Kai, and Xiaoyi Dong, "Active temperature compensation design of sensor with fiber gratings," Chin. Opt. Lett. 2, 562-564 (2004)

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  6. G. A. Ball and W. W. Morey, Opt. Lett. 19, 1979 (1994).

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