Relative humidity sensor based on microfiber loop resonator

Relative humidity sensor based on microfiber loop resonator

A novel relative humidity (RH) sensor based on a microfiber loop resonator (MLR) is proposed and experimentally demonstrated. As refractive index of the microfiber in the MLR is modified by environmental humidity, resonant wavelength of the MLR changes with RH level. By detecting this wavelength shi...

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Bibliographic Details
Main Authors: Zheng, Yangzi, Dong, Xinyong, Zhao, Chunliu, Li, Yi, Shao, Liyang, Jin, Shangzhong
Other Authors: School of Chemical and Biomedical Engineering
Format: Article
Language:English
Published: 2015
Subjects:
DRNTU::Engineering::Materials
Online Access:https://hdl.handle.net/10356/104951
http://hdl.handle.net/10220/25868
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Institution: Nanyang Technological University
Language: English
Description
Summary:A novel relative humidity (RH) sensor based on a microfiber loop resonator (MLR) is proposed and experimentally demonstrated. As refractive index of the microfiber in the MLR is modified by environmental humidity, resonant wavelength of the MLR changes with RH level. By detecting this wavelength shift, RH measurement is realized with a linear response sensitivity of 1.8 pm/% RH. The obvious advantage of this technique over others is that no coating of humidity-sensitive material is required.

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