Interferometric humidity sensors based on microfiber knot resonators

Yu Wu; TianHu Zhang; Yunjiang Rao; Yuan Gong

doi:10.1117/12.884918

17 May 2011 Interferometric humidity sensors based on microfiber knot resonators

Yu Wu, TianHu Zhang, Yunjiang Rao, Yuan Gong

Proceedings Volume 7753, 21st International Conference on Optical Fiber Sensors; 77531M (2011) https://doi.org/10.1117/12.884918
Event: 21st International Conference on Optical Fibre Sensors (OFS21), 2011, Ottawa, Canada

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%.

Citation Download Citation

Yu Wu, TianHu Zhang, Yunjiang Rao, and Yuan Gong "Interferometric humidity sensors based on microfiber knot resonators", Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77531M (17 May 2011); https://doi.org/10.1117/12.884918

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