Relative Humidity Sensor Based on Microfiber Loop Resonator | Zendy

Yangzi Zheng | Zendy; Xinyong Dong | Zendy; Chunliu Zhao | Zendy; Li Yi | Zendy; Liyang Shao | Zendy; Shangzhong Jin | Zendy

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Relative Humidity Sensor Based on Microfiber Loop Resonator

Author(s) -

Yangzi Zheng,

Xinyong Dong,

Chunliu Zhao,

Li Yi,

Liyang Shao,

Shangzhong Jin

Publication year - 2013

Publication title -

advances in materials science and engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.356

H-Index - 42

eISSN - 1687-8442

pISSN - 1687-8434

DOI - 10.1155/2013/815930

Subject(s) - microfiber , materials science , relative humidity , resonator , humidity , wavelength , refractive index , optics , sensitivity (control systems) , optoelectronics , composite material , meteorology , electronic engineering , physics , engineering

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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