title: Optical fiber sensor based on a radio frequency Mach-Zehnder interferometer.
abstract: This Letter proposes an optical fiber radio frequency (RF) Mach-Zehnder interferometer (MZI) for sensing applications. An RF modulated laser source is injected into an optical fiber RF-MZI and collected by a photodiode. The interference pattern is observed in the RF domain by sweeping the frequency using a network analyzer. The proposed sensor has a linear response to applied temperature change. In addition, the sensitivity, observation frequency range, and the length of the sensing arm are discussed.
authors.affiliation: Department of Electrical and Computer Engineering, Missouri University of Science and Technology, Rolla, Missouri 65409, USA.
authors.forename: Tao
authors.initials: T
authors.lastname: Wei
authors.forename: Jie
authors.initials: J
authors.lastname: Huang
authors.forename: Xinwei
authors.initials: X
authors.lastname: Lan
authors.forename: Qun
authors.initials: Q
authors.lastname: Han
authors.forename: Hai
authors.initials: H
authors.lastname: Xiao