The fiber-optic extrinsic Fabry-Perot interferometer (EFPI) is one of the simplest sensing configurations and is widely used in various applications. Inspired by the EFPI, we report a novel and
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In this paper, the most recently developed TSP sensors for single parameter and multi-parameter TSP sensing and measurement based on different OFSs are reviewed.
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In this work, a fast-response fiber-optic humidity sensor for human finger motion detection was proposed based on the deposition of an L-lysine modified MX-ene (MXene-Lys) composite film on TFBG.
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An ultracompact fiber-optic microstructured sensor is fabricated and utilized for highly sensitive sensing. A straight single-mode fiber (SMF) and two SMF-based Sagnac interferometers
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SignificancePhotoacoustic (PA) imaging is an emerging biomedical imaging modality that can map optical absorption contrast in biological tissues by detecting ultrasound signal. Piezoelectric
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A sapphire-diaphragm fiber-optic vibration sensor for high-temperature applications is proposed and experimentally demonstrated. Its sensing unit consists solely of a monolithic sapphire sensitive
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This paper proposes a volatile organic compound (VOC) gas sensor based on optical fiber surface plasmon resonance (SPR). The sensor uses a heterogeneo
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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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This chapter explains the basic principle of operation of the sensors: two-beam interferometry. It also describes two of the basic methods of interferometer demodulation.
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A fiber-optic extrinsic Fabry-Perot interferometer strain sensor (EFPI-S) of ls = 2.5 cm sensor length using three-wavelength digital phase demodulation is demonstrated to exhibit <50 pm
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As presented, it is obvious that interferometric fiber optic sensors have great potential in practical applications such as real time deformation monitoring of aircrafts, ships, bridges, and constructions.
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The multiplexed sapphire sensors present a significant advancement over traditional single-point sensors for critical high temperature applications. In this Letter we present a high
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For pursuing high sensitivity, fiber-optic interferometer-based sensors are generally superior to fiber grating sensors and anti-resonant waveguide mechanism sensors. In particular, the
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This chapter explains the basic principle of operation of the sensors: two-beam interferometry. It also describes two of the basic methods of interferometer demodulation.
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Fiber Bragg grating (FBG) sensors have emerged as advanced tools for monitoring a wide range of physical parameters in various fields, including
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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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In-fiber Mach–Zehnder interferometers (MZIs)In-fiber Mach-Zehnder Interferometers are based on the interference between two light beams transmitted in the
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Specialty fibers have enabled a wide range of sensing applications. Particularly, with the recent advancement of anti-resonant effects, specialty fibers
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A fiber optic multi-parameter sensor is proposed based on a Mach-Zehnder interferometer (MZI). The in-line MZI is constructed by inscribing a linear waveguide and a helical waveguide within
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A Mach-Zehnder interferometer (MZI) sensor based on thin-core fiber (TCF) is proposed. Sensitive materials such as polydimethylsiloxane (PDMS) or gelatin are coated on the surfaces of
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In this paper, we report the demonstration of a new type of ultrahigh-resolution IFS: a Mach-Zehnder Fabry-Perot (MZ-FP) hybrid interferometer. The interferometer combines a traditional...
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We present an overview of recent developments in optical fiber-based wearable sensors, focusing on two mechanisms: wavelength interrogation and intensity modulation for the detection of
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A Mach-Zehnder interferometer (MZI) based fiberoptic refractive index (RI) sensor is constructed by uniformly tapering standard single mode fiber (SMF) for RI measurement.
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In addition, recent progress of in-fiber MZIs for these sensing applications is reviewed. Specifically, the means to enhance the sensitivities are summarized and discussed. The chapter starts with the
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The object of the study is an intermode interferometer based on composite fiber-optic SMSMS structure, and its application for simultaneous measurement of glycerol concentration in an
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This paper proposes an all-fiber optical sensor based on a Mach-Zehnder interferometer (MZI) for hydrostatic pressure measurement, utilizing a multi-mode fiber (MMF)-single-hole-dual-core
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Abstract This study proposed a self-compensation three-wavelength demodulation method for interrogating fiber-optic extrinsic Fabry–Pérot interferometric (EFPI) sensors. The
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