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A fast response and highly sensitivity relative humidity sensor with polymer-coated micro-nano fiber Bragg grating
Author(s): Pengfei Li; Haitao Yan; Feilin Zhang; Hongzhan Cao; Zhanwu Xie
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Paper Abstract

In this paper, we proposed a new approach to measured humidity by polymer-coated micro-nano Bragg grating. The FBG was written in a 21.85-μm –diameter micro-nano fiber by 244-nm UV laser. Humidity changed the force that acting on the micro-nano fiber, thus the bandwidth of the reflection spectra was introduced and humidity measurement was therefore realized. When the humidity increased, the linearity value was 99 % and the bandwidth changed 0.00312 nm/%. The linearity is 97% and 98% in the stages of humidity reduction in 90 to 65 %RH and 65 to 30 %RH, respectively.

Paper Details

Date Published: 12 December 2018
PDF: 5 pages
Proc. SPIE 10849, Fiber Optic Sensing and Optical Communication, 108490K (12 December 2018); doi: 10.1117/12.2504275
Show Author Affiliations
Pengfei Li, Henan Univ. of Science and Technology (China)
Haitao Yan, Henan Univ. of Science and Technology (China)
Puyang Institute of Opto-Electronic Industrial Technology (China)
Feilin Zhang, Puyang Institute of Opto-Electronic Industrial Technology (China)
Hongzhan Cao, Puyang Institute of Opto-Electronic Industrial Technology (China)
Zhanwu Xie, Puyang Institute of Opto-Electronic Industrial Technology (China)


Published in SPIE Proceedings Vol. 10849:
Fiber Optic Sensing and Optical Communication
Jie Zhang; Songnian Fu; Qunbi Zhuge; Ming Tang; Tuan Guo, Editor(s)

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