In this paper, a Mach–Zehnder interferometer-based membrane-free acoustic sensing method is developed. The sensing principle relies on direct detection of sound-pressure-induced changes of the refra...
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In this paper, we first proposed the application of BSMZI in the detection of acoustic sensing. The sensor can successfully convert dynamic acoustic waves into an optical signal and
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Abstract A novel and in-line fiber low-frequency vibration sensor based on Butterfly-Shape Mach-Zehnder Interferometer (BSMZI) is proposed and demonstrated experimentally. The sensing
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The application prospects of fiber optic Mach-Zehnder interferometer (MZI) acousto-sensing technology in the field of partial discharge (PD) detection are promising. However, current external fiber optic
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The Mach-Zehnder interferometer membrane-free fiber-optic acoustic sensor (FOAS) achieves a frequency response of 500 Hz to 20 kHz and a
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Many silica based fiber optic interferometric sensors were developed for high temperature measurement, including those based on Fabry–Perot (FP) cavities and Mach–Zehnder
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Recently, optical fiber Mach– Zehnder interferometer (MZI) sensors have attracted a lot of interest for various physical and chemical sensing applications due to their simple structure, capability of
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We propose a novel design for a fiber-optic acoustic sensor array that is based on the Sagnac interferometer. The performance of this Sagnac sensor array (SSA) design is analyzed and
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In this paper, a high sensitive fiber-optic Fabry-Perot interferometer sensor based on gold diaphragm for acoustic detection has been proposed and experimentally demonstrated.
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A simple, compact, and high sensitive optical fiber Mach–Zehnder interferometer (MZI) based micro-displacement sensor is presented. The MZI is
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Interferometric fiber optic sensor exploits the changes in an optical path length induced by transverse load in the optical fibers. MZI sensors modulate the phase of the electromagnetic waves propagating
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In-fiber Mach–Zehnder interferometers (MZIs) are based on the interference between two light beams transmitted in the functional optical fiber. They have the
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This review has systematically explored high-sensitivity optical fiber MZIs based on direct optical field-medium interaction, a transformative approach that has redefined the boundaries of optical fiber
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Schematic diagram of the experimental setup for the MZI-based membrane-free acoustic sensing measurements.
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The fiber-optic Mach–Zehnder interferometer (MZI) acoustic sensing technology offers unique advantages in partial discharge (PD) detection. However, its sensitivity for PD detection in
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A high-sensitivity optical fiber curvature sensor based on eight-core fiber (ECF) is proposed and demonstrated. The sensor is fabricated by directly fusing a segment of ECF between
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In recent years, optical fiber sensors have become most popular due to their unique advantages. A review of optical fiber Mach–Zehnder interferometers (MZIs) with micro-cavity
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An acoustic sensor based on balloon-shaped microfiber Mach-Zehnder Interferometer (BSMZI) is proposed and demonstrated. The BSMZI is constructed by bending a tapered polarization
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Abstract: This paper investigates analytically the performance of MZI sensor for acoustic detection in terms of light power, fiber characteristic and detectable acoustically/induced phase in the terms of
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A subtype of fiber-optic microphone uses a Fabry-Pérot interferometer as the sensing element. In these sensors, two partially reflective mirrors form an optical cavity
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Traditional optical fiber interferometry systems rely on complex optical path configurations, including reference and measurement arms, to maintain a phase difference. In contrast, in-fiber
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In this paper, a Mach–Zehnder interferometer-based membrane-free acoustic sensing method is developed. The sensing principle relies on direct detection of
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In this article, a power-function-curved mandrel sensor (PMS) with an acoustic wave enhancement function was developed, and a fiber MZI acoustic wave sensing system was built.
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We propose a high sensitive acoustic sensor based on a microfiber Mach-Zehnder interferometer (MMZI) with tapered polarization-maintaining fiber (PMF). The optical tapering technology is used to
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A new type of interferometric fiber sensor based on a Mach-Zehnder Fabry-Perot hybrid scheme has been experimentally demonstrated. The interferometer combines the benefits of both a
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