Fiber-optic acoustic sensor based on the Sagnac interferometer
E Udd - Single Mode Optical Fibers, 1983 - spiedigitallibrary.org
A series of fiber-optic acoustic sensors based on the Sagnac interferometer are described.
Features of these sensors include filtering of low-frequency signal components, use of a …
Features of these sensors include filtering of low-frequency signal components, use of a …
Distributed fiber optic acoustic sensor for leak detection
JP Kurmer, SA Kingsley, JS Laudo… - … and Multiplexed Fiber …, 1992 - spiedigitallibrary.org
Leaks in dielectric fluid-filled, high-voltage distribution lines can cause significant problems
for the electric power industry. Often, these lines run over long distance and are difficult to …
for the electric power industry. Often, these lines run over long distance and are difficult to …
Optical fiber acoustic sensor utilizing mode-mode interference
MR Layton, JA Bucaro - Applied optics, 1979 - opg.optica.org
A method for detecting sound using a single step-index multimode fiber is presented. The
detected signal results from differences in acoustically induced phase shifts between two …
detected signal results from differences in acoustically induced phase shifts between two …
Fiber microbend acoustic sensor
JN Fields, JH Cole - Applied optics, 1980 - opg.optica.org
Recently there has been much effort to develop passive fiber-optic acoustic sensors [1] that
require no electrical power at the sensor. One approach that potentially provides extreme …
require no electrical power at the sensor. One approach that potentially provides extreme …
Single fiber interferometric acoustic sensor
JA Bucaro, EF Carome - Applied optics, 1978 - opg.optica.org
Abstract Recent publications [1]–[3] have reported the detection of acoustically induced
phase modulation in optical fibers. The first two discussed such an effect for use as a …
phase modulation in optical fibers. The first two discussed such an effect for use as a …
Fiber-optic acoustic sensors with increased sensitivity by use of composite structures
GB Hocker - Optics Letters, 1979 - opg.optica.org
Fiber-optic acoustic sensors having sensitivity nearly 2 orders of magnitude greater than that
of sensors using bare fiber are reported. These new devices utilize a composite structure …
of sensors using bare fiber are reported. These new devices utilize a composite structure …
Fiber optic acoustic sensors with composite structure: an analysis
GB Hocker - Applied Optics, 1979 - opg.optica.org
Fiber optic acoustic sensors with composite structures are analyzed and shown to offer
greatly increased acoustic sensitivity. The composite structure consists of an optical fiber …
greatly increased acoustic sensitivity. The composite structure consists of an optical fiber …
Planar flexible fiber-optic interferometric acoustic sensor
N Lagakos, P Ehrenfeuchter, TR Hickman, A Tveten… - Optics letters, 1988 - opg.optica.org
A planar flexible fiber-optic interferometric acoustic sensor has been developed by wrapping
optimized single-mode fibers in a planar spiral form and then embedding the fiber in a thin …
optimized single-mode fibers in a planar spiral form and then embedding the fiber in a thin …
Fibre optic sensors
TG Giallorenzi - Optics & Laser Technology, 1981 - Elsevier
Fibre optic sensors are being developed which have significant potential for sensing a
variety of physical variables. These include acoustic pressures, magnetic fields …
variety of physical variables. These include acoustic pressures, magnetic fields …
Detector for an optical-fiber acoustic sensor using dynamic holographic interferometry
It is shown that the acoustically induced phase modulation of coherent light propagating
within a multimode optical fiber may be linearly detected by an interferometer employing an …
within a multimode optical fiber may be linearly detected by an interferometer employing an …