title: Simple interrogator for optical fiber-based white light Fabry-Perot interferometers.
abstract: In this Letter, we present the design of a simple signal interrogator for optical fiber-based white light Fabry-Perot (F-P) interferometers. With the hardware being composed of only a flat fused silica wafer and a CCD camera, this interrogator translates the spectral interference into a spatial interference pattern, and then demodulates the F-P cavity length with the use of a relatively simple demodulation algorithm. The concept is demonstrated experimentally in a fiber optic sensor with a sapphire wafer as the F-P cavity.
authors.forename: Zhihao
authors.initials: Z
authors.lastname: Yu
authors.forename: Zhipeng
authors.initials: Z
authors.lastname: Tian
authors.forename: Anbo
authors.initials: A
authors.lastname: Wang