OSA's Digital Library

Chinese Optics Letters

Chinese Optics Letters


  • Vol. 2, Iss. 11 — Nov. 10, 2004
  • pp: 621–623

High sensitivity fiber Bragg grating pressure difference sensor

Haiwei Fu, Junmei Fu, and Xueguang Qiao  »View Author Affiliations

Chinese Optics Letters, Vol. 2, Issue 11, pp. 621-623 (2004)

View Full Text Article

Acrobat PDF (210 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

  • Export Citation/Save Click for help


Based on the effect of fiber Bragg grating (FBG) pressure difference sensitivity enhancement by encapsulating the FBG with uniform strength beam and metal bellows, a FBG pressure difference sensor is proposed, and its mechanism is also discussed. The relationship between Bragg wavelength and the pressure difference is derived, and the expression of the pressure difference sensitivity coefficient is also given. It is indicated that there is good linear relation between the Bragg wavelength shift and the pressure difference of the sensor. The theoretical and experimental pressure difference sensitivity coefficients are 38.67 and 37.6 nm/MPa, which are 12890 and 12533 times of that of the bare FBG, respectively. The pressure difference sensitivity and dynamic range can be easily changed by changing the size, Young's modulus, and Poisson's ratio of the beam and the bellows.

© 2005 Chinese Optics Letters

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2340) Fiber optics and optical communications : Fiber optics components
(060.2370) Fiber optics and optical communications : Fiber optics sensors

Haiwei Fu, Junmei Fu, and Xueguang Qiao, "High sensitivity fiber Bragg grating pressure difference sensor," Chin. Opt. Lett. 2, 621-623 (2004)

Sort:  Author  |  Year  |  Journal  |  Reset


  1. A. D. Kersey, M. A. Davis, H. J. Patrick, M. LeBlanc, K. P. Koo, C. G. Askins, M. A. Putnam, and E. J. Friebele, J. Ligthwave Technol. 15, 1442 (1997).
  2. W. Ecke, I. Latka, R. Willsch, A. Reulinger, and R. Graue, Proc. SPIE 4185, 888 (2000).
  3. Y. Zhang, Z. G. Liu, Z. Y. Guo, S. Z. Yuan, D. J. Feng, and X. Y. Dong, Acta Opt. Sin. (in Chinese) 22, 89 (2002).
  4. V. V. Spirin, M. G. Shlyagin, S. V. Miridonov, F. J. M. Jimenez, and R. M. L. Gutierrez, Optics and Lasers in Engineering 32, 497 (2000).
  5. R. Maaskant, T. Alavie, R. M. Measures, G. Tadros, S. H. Rizkalla, and A. Guha-Thakurta, Cement and Concrete Composites 19, 21 (1997).
  6. H. W. Fu, X. G. Qiao, Z. A. Jia, and J. M. Fu, Chin. J. Lasers (in Chinese) 31, 473 (2004).
  7. A. Othonos and K. Kalli, Fiber Bragg Gratings: Fundamentals and Applications in Telecommunications and Sensing (Artech House, Norwood, 1999).

Cited By

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited