As a fundamental optical approach to interferometry, Sagnac interference has been widely
used for reflection manipulation, precision measurements, and spectral engineering in …

This paper presents a comprehensive review of hydrophones, their design considerations,
physical aspects, and structures by reviewing many publications that have been published …

A Michelson interferometric fiber-optic acoustic sensor based on a large-area gold
diaphragm is proposed in this paper. The Michelson interferometer (MI) based on 3× 3 …

Fiber-optic interferometric sensing is a very attractive approach for creating lightweight, high-
sensitive, and fully passive fiber-optic hydrophone arrays. In this paper, results of sea trials …

A phase interrogation method for a fiber-optic acoustic sensor based on a short-cavity
extrinsic Fabry-Perot interferometer (EFPI) is proposed with two wavelengths. A …

Gas detection with hollow-core photonic bandgap fibre (HC-PBF) and pulsed photothermal
(PT) interferometry spectroscopy are studied theoretically and experimentally. A theoretical …

A diaphragm based long cavity Fabry–Perot interferometric fiber acoustic sensor is
proposed. The Fabry–Perot cavity is formed by a flat fiber facet and an ultra-thin silver …

A miniature optical fiber ultrasonic sensor based on the Fabry-Perot interferometer (FPI) is
proposed and experimentally demonstrated. The cavity of the interferometer is based on a …

We report an all-optical fiber photoacoustic gas sensor with a graphene nano-mechanical
resonator as the acoustic detector. The acoustic detector is a Fabry-Perot interferometer …

Multipoint acoustic sensing system plays an important role in industrial applications. Here, a
diaphragm based optical fiber sensor array is proposed, in which each sensor tip is made of …