Open AccessTungsten disulfide (WS_2) based all-fiber-optic humidity sensor
Author(s) -
Yunhan Luo,
Chaoying Chen,
Kai Xia,
Shuihua Peng,
Heyuan Guan,
Jieyuan Tang,
Huiui Lu,
Jianhui Yu,
Jun Zhang,
Yi Xiao,
Zhe Chen
Publication year - 2016
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.24.008956
Subject(s) - materials science , humidity , fiber optic sensor , optical fiber , relative humidity , optics , repeatability , tungsten disulfide , optoelectronics , fiber , composite material , chemistry , physics , chromatography , thermodynamics
We demonstrate a novel all-fiber-optic humidity sensor comprised of a WS 2 film overlay on a side polished fiber (SPF). This sensor can achieve optical power variation of up to 6 dB in a relative humidity (RH) range of 35%-85%. In particular, this novel humidity fiber sensor has a linear correlation coefficient of 99.39%, sensitivity of 0.1213 dB/%RH, and a humidity resolution of 0.475%RH. Furthermore, this sensor shows good repeatability and reversibility, and fast response to breath stimulus. This WS 2 based all-fiber optic humidity sensor is easy to fabricate, is compatible with pre-established fiber optic systems, and holds great potential in photonics applications such as in all-fiber optic humidity sensing networks.