Highly sensitive temperature and strain sensors based on all-fiber 45°-TFG Lyot filter

Part of book or chapter of book English OPEN
Yan, Zhijun ; Adedotun, Adebayo ; Zhou, Kaiming ; Zhang, Lin (2012)
  • Publisher: SPIE

We demonstrate highly sensitive temperature and strain sensors based on an all-fiber Lyot filter structure, which is formed by concatenating two 45°-TFGs (tilted fiber gratings) with a PM fiber cavity. The experiment results show the all-fiber 45°-TFG Lyot filter has very high sensitivity to strain and temperature. The 45°-TFG Lyot filters of two different cavity lengths (18cm and 40 cm) have been evaluated for temperature sensing by heating a section of the cavity from 10°C to 50°C. The experiment results have shown remarkably high temperature sensitivities of 0.616nm/°C for 18cm and 0.31nm/°C for 40cm long cavity filter, respectively. The 18cm long cavity filter has been subjected to strain variations up to around 550μ ε and the filter has exhibited strain sensitivities of 0.02499nm/μ ε and 0.012nm/μ ε for two straining situations, where its cavity middle section of 18cm and 9cm were stretched, respectively.
  • References (21)
    21 references, page 1 of 3

    H. J. Patrick, et al., "Hybrid fiber Bragg grating/long period fiber grating sensor for strain/temperature discrimination," Photonics Technology Letters, IEEE, vol. 8, pp. 1223-1225, 1996.

    Y. Yu, et al., "Fiber Bragg grating sensor for simultaneous measurement of displacement and temperature," Opt. Lett., vol. 25, pp. 1141-1143, 2000.

    P. Kronenberg, et al., "Relative humidity sensor with optical fiber Bragg gratings," Opt. Lett., vol. 27, pp.

    R. Willsch, et al., "Optical fiber grating sensor networks and their application in electric power facilities, aerospace and geotechnical engineering," in Optical Fiber Sensors Conference Technical Digest, 2002. Ofs 2002, 15th, 2002, pp. 49-54 vol.1.

    G. M. a. J. M. W. William W. Morey, "Recent advances in fiber-grating sensors for utility industry applications " Proc. SPIE, vol. 90, p. 2594, 1996.

    R. Maaskant, et al., "Fiber-optic Bragg grating sensors for bridge monitoring," Cement and Concrete Composites, vol. 19, pp. 21-33, 1997.

    X. Shu, et al., "Dependence of temperature and strain coefficients on fiber grating type and its application to simultaneous temperature and strain measurement," Opt. Lett., vol. 27, pp. 701-703, 2002.

    J. Villatoro, et al., "Photonic crystal fiber interferometer for chemical vapor detection with high sensitivity," Opt. Express, vol. 17, pp. 1447-1453, 2009.

    B. Dong, et al., "Temperature- and phase-independent lateralforce sensor based on a core-offsetmulti-mode fiber interferometer," Opt. Express, vol. 16, pp. 19291-19296, 2008.

    A. D. Kersey, et al., "A SIMPLE FIBER FABRY-PEROT SENSOR," Optics Communications, vol. 45, pp.

  • Related Research Results (1)
  • Similar Research Results (2)
  • Metrics
    views in OpenAIRE
    views in local repository
    downloads in local repository

    The information is available from the following content providers:

    From Number Of Views Number Of Downloads
    Aston Publications Explorer - IRUS-UK 0 5
Share - Bookmark