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 …

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 …

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 …

Detector for an optical-fiber acoustic sensor using dynamic holographic interferometry

TJ Hall, MA Fiddy, MS Ner - Optics letters, 1980 - opg.optica.org
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 …

Measurement of sensitivity of optical fibers for acoustic detection

JA Bucaro, TR Hickman - Applied optics, 1979 - opg.optica.org
Acoustically induced optical phase modulation has been measured in single-mode fibers
over the acoustic frequency range of 100–1400 Hz. These results are compared to the …

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 …

Acoustic sensing with a single coiled monomode fiber

SC Rashleigh - Optics letters, 1980 - opg.optica.org
A single monomode fiber-optic acoustic sensor is proposed. The acoustic wave differentially
changes the phase velocities of the polarization eigenmodes in a tension-coiled 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 …

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 …

Twenty-five years of interferometric fiber optic acoustic sensors at the Naval Research Laboratory

JH Cole, C Kirkendall, A Dandridge, G Cogdell… - Journal of the …, 2004 - JSTOR
Interferometric fiber optic acoustic sensors are based on measuring the phase change of
light traveling in an optical fiber due to the strains developed in the fiber by an applied …