title: Fabry-Perot diaphragm fiber-optic sensor.
abstract: The general theory of a diaphragm fiber-optic sensor (DFOS) is proposed. We use a critical test to determine if a DFOS is based on Fabry-Perot interference or intensity modulation. By use of the critical test, this is the first design, to the best of our knowledge, of a purely Fabry-Perot DFOS, fabricated with microelectromechanical system technology, and characterized as an audible microphone and ultrasonic hydrophone with orders of improvement in signal-to-noise ratio.
authors.affiliation: Department of Physics, New Jersey Institute of Technology, Newark, New Jersey 07102, USA. chin@njit.edu
authors.forename: Ken K
authors.initials: KK
authors.lastname: Chin
authors.forename: Yan
authors.initials: Y
authors.lastname: Sun
authors.forename: Guanhua
authors.initials: G
authors.lastname: Feng
authors.forename: George E
authors.initials: GE
authors.lastname: Georgiou
authors.forename: Kangzhu
authors.initials: K
authors.lastname: Guo
authors.forename: Edip
authors.initials: E
authors.lastname: Niver
authors.forename: Harry
authors.initials: H
authors.lastname: Roman
authors.forename: Karen
authors.initials: K
authors.lastname: Noe