title: Signal-processing algorithm for white-light optical fiber extrinsic Fabry-Perot interferometric sensors.
abstract: We present a novel signal-processing algorithm for single-mode optical fiber extrinsic Fabry-Perot interferometric sensors that can achieve both high-resolution, absolute measurement of the cavity length and a large dynamic measurement range simultaneously. The algorithm is based on an accurate model of the characteristics of a fiber-optic sensor that takes into account the phase shift that is due to the coupling of light reflected at the second surface to the lead-in fiber end.
authors.affiliation: Center for Photonics Technology, Bradley Department of Electrical and Computer Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061-0111, USA. mhan@vt.edu
authors.forename: Ming
authors.initials: M
authors.lastname: Han
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhang
authors.forename: Fabin
authors.initials: F
authors.lastname: Shen
authors.forename: Gary R
authors.initials: GR
authors.lastname: Pickrell
authors.forename: Anbo
authors.initials: A
authors.lastname: Wang