title: Intrinsic fiber-optic Fabry-Perot interferometer based on arc discharge and single-mode fiber.
abstract: We propose a simple intrinsic Fabry-Perot interferometer (FPI) based on single-mode fiber, where a thin film is formed by arc discharge to serve as one mirror of the FPI cavity. The temperature and refractive-index (RI) characteristics of the proposed device are investigated. Experimental results show that the device can provide temperature-independent measurement of RI with a fringe-contrast sensitivity of ~72.59 dB/RIU (RI units). Meanwhile, it can also be used as a temperature sensor with a wavelength sensitivity of ~8 pm/°C. Therefore, the potential simultaneous measurement of RI and temperature could be realized by detecting the variations of fringe contrast and wavelength, respectively.
authors.affiliation: Chongqing Institute of Green and Intelligent Technology, CAS, Chongqing, China. wudi@cqu.edu.cn
authors.forename: Di
authors.initials: D
authors.lastname: Wu
authors.forename: Tao
authors.initials: T
authors.lastname: Zhu
authors.forename: Guo-Yin
authors.initials: GY
authors.lastname: Wang
authors.forename: Jian-Yu
authors.initials: JY
authors.lastname: Fu
authors.forename: Xiao-Guang
authors.initials: XG
authors.lastname: Lin
authors.forename: Guang-Lei
authors.initials: GL
authors.lastname: Gou