title: Tungsten disulfide (WS2) based all-fiber-optic humidity sensor.
abstract: We demonstrate a novel all-fiber-optic humidity sensor comprised of a WS2film 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 WS2based 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.
authors.forename: Yunhan
authors.initials: Y
authors.lastname: Luo
authors.forename: Chaoying
authors.initials: C
authors.lastname: Chen
authors.forename: Kai
authors.initials: K
authors.lastname: Xia
authors.forename: Shuihua
authors.initials: S
authors.lastname: Peng
authors.forename: Heyuan
authors.initials: H
authors.lastname: Guan
authors.forename: Jieyuan
authors.initials: J
authors.lastname: Tang
authors.forename: Huiui
authors.initials: H
authors.lastname: Lu
authors.forename: Jianhui
authors.initials: J
authors.lastname: Yu
authors.forename: Jun
authors.initials: J
authors.lastname: Zhang
authors.forename: Yi
authors.initials: Y
authors.lastname: Xiao
authors.forename: Zhe
authors.initials: Z
authors.lastname: Chen