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Proceedings Paper

Biofuncationalized microfiber Bragg grating for acid-based sensing
Author(s): Yang Ran; Yunyun Huang; Xiang Shen; Dandan Sun; Xiuxin Wang; Long Jin; Jie Li; Baiou Guan
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Paper Abstract

We demonstrate an acid-based sensor from the biofuncationalized microfiber Bragg grating. By electrostatic selfassembly layer-by-layer technique, the film consisting of sodium alginate which has hygroscopic response to the potential of hydrogen is coated on the fiber surface. Consequently, the refractive index variation of the sensing film caused by water absorption can be measured by mFBG’s higher order mode peak which can be translated into pH value information. The sensitivity of the sensor is received as high as 265pm/pH.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 915742 (2 June 2014); doi: 10.1117/12.2058295
Show Author Affiliations
Yang Ran, Jinan Univ. (China)
Yunyun Huang, Jinan Univ. (China)
Xiang Shen, Jinan Univ. (China)
Dandan Sun, Jinan Univ. (China)
Xiuxin Wang, Jinan Univ. (China)
Long Jin, Jinan Univ. (China)
Jie Li, Jinan Univ. (China)
Baiou Guan, Jinan Univ. (China)


Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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