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Proceedings Paper

Side polished fiber Bragg grating sensor for simultaneous measurement of refractive index and temperature
Author(s): Zhe Chen; Jieyuan Tang; Ruoyan Fan; Yongchun Zhong; Jun Zhang; Siben Li
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Paper Abstract

A fiber sensor to achieve simultaneous measurement of refractive index and temperature is proposed by using a side polished fiber Bragg grating. The reflective wavelength of side polished fiber Bragg grating shifts with the ambient refractive index and local temperature. By overlaying half of the polished surface of fiber Bragg grating with liquid material, simultaneous discrimination of liquid refractive index and local temperature with dual reflective Bragg wavelengths is demonstrated. The refractive index sensitivity is from 4.99nm/riu to 252.78nm/riu when refractive index changes from 1.4098 to 1.4479, and the temperature sensitivity is 0.012nm/°C.

Paper Details

Date Published: 18 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77538K (18 May 2011); doi: 10.1117/12.885183
Show Author Affiliations
Zhe Chen, Jinan Univ. (China)
Jieyuan Tang, Jinan Univ. (China)
Ruoyan Fan, Jinan Univ. (China)
Yongchun Zhong, Jinan Univ. (China)
Jun Zhang, Jinan Univ. (China)
Siben Li, Jinan Univ. (China)


Published in SPIE Proceedings Vol. 7753:
21st International Conference on Optical Fiber Sensors

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