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Proceedings Paper

Interferometric humidity sensors based on microfiber knot resonators
Author(s): Yu Wu; TianHu Zhang; Yunjiang Rao; Yuan Gong
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Paper Abstract

In this paper, three fiber-optic interferometric humidity sensors based on silica/polymer microfiber knot resonators (SMKR/PMKR) are reported. These tiny humidity sensors are directly fabricated by using silica/polymer microfibers without any humidity-sensitive coating. The silica MKR has a humidity sensitivity of ~12pm/10% RH over a range from 14% RH to 60% RH, while the PMMA (poly-methyl methacrylate) MKR has a humidity sensitivity of ~88pm/10% RH, over a range from 17% RH to 95% RH, and the PAM (Polyacrylamide) MKR with the highest sensitivity of ~270pm/% RH over the range of 10% to 62%.

Paper Details

Date Published: 17 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77531M (17 May 2011); doi: 10.1117/12.884918
Show Author Affiliations
Yu Wu, Univ. of Electronic Science and Technology of China (China)
TianHu Zhang, Univ. of Electronic Science and Technology of China (China)
Yunjiang Rao, Univ. of Electronic Science and Technology of China (China)
Yuan Gong, Univ. of Electronic Science and Technology of China (China)


Published in SPIE Proceedings Vol. 7753:
21st International Conference on Optical Fiber Sensors
Jacques Albert; Wojtek J. Bock, Editor(s)

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