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A parallel optical fiber Fabry–Perot interferometer (FPI) and Vernier effect sensor for simultaneous high-sensitivity measurement of relative humidity (RH) and temperature is proposed
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An optical fiber sensor based on Michelson interferometer (MI) cascaded with Fabry–Perot interferometer (FPI) is proposed for simultaneous monitoring of high-temperature and
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Compared to traditional electrical sensors, fiber optic sensors offer distinct advantages, including immunity to electromagnetic interference, corrosion resistance, and compact size. Furthermore, the
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Ultra-high sensitivity fiber optic FPI temperature sensor Xiao Ai, Jingsheng Lyu, Qingchao Zhao, Yuanyuan Yang, Ying Shang, and Jiasheng Ni Opt. Continuum 5 (5), 1529-1537 (2026) View: HTML
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A new reflective fiber-optic Fabry-Perot (F-P) salinity sensor is proposed with a section of open liquid cavity, which ensures that the seawater flows
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For high-temperature FPI sensors with optical fiber splicing, the fiber end face can easily be contaminated or even damaged in harsh environments
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Explore fiber optic sensors: their working principles, types (intrinsic, extrinsic, hybrid), and diverse applications in mechanical, chemical, and structural health monitoring.
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Advances in Fiber-Optic Extrinsic Fabry–Perot Interferometric Physical and Mechanical Sensors: A Review Published in: IEEE Sensors Journal ( Volume: 23, Issue: 7, 01 April 2023 )
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In this paper, we skillfully design and fabricate a compact fiber-optic sensor containing of fiber Bragg grating (FBG) and polymer microsphere to monitor humidity and temperature at the same
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Ball resonator optical fiber sensors (OFSs) can offer multiparameter sensing capability, but their non-periodic and low-finesse reflection spectra make conventional spectral demodulation
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We present a laser machining method for fabricating an all-fiber pillar-in-bubble Fabry-Perot interferometer (FPI), which is used for strain sensors with high sensitivity.
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ferometer (FPI) cavity that is suitable for fluidic measurement applications. Fabrication of the FPI involves the alignment and bonding of three opti al fiber sections using either ceramic glue or low
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The official website of Hamamatsu Corporation whose mission is to advance science and industry through photonic technologies. Our products include optical sensors
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Optical fiber sensors have evolved significantly, offering advantages like miniaturization and immunity to electromagnetic interference. The review covers various fiber-optic sensors,
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To solve this problem, this paper proposes a Twice-FFT demodulation method for signal distortion in a FPI acoustic sensor. The hypotenuse intensity demodulation method is applied to
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Based on the Vernier effect, this paper proposes an optical fiber seawater temperature sensor and demonstrates its advantages of high sensitivity and a large measurement range.
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We report a novel fiber-optic sensor for measurement of static gas pressure based on the natural convection of a heated silicon pillar attached to a
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This review discusses a variety of fiber-optic-based H2 sensor technologies since the year 1984, including: interferometer technology, fiber
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A fiber-optic sensor is a sensor that uses optical fiber either as the sensing element ("intrinsic sensors"), or as a means of relaying signals from a remote sensor to the electronics that process the signals
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A fiber optic sensor operates with an optical fiber cable connected to a dedicated light source. These sensors offer great mounting flexibility and can be used is in a
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We demonstrate a fiber in-line Fabry-Perot interferometer cavity sensor for refractive index measurement. The interferometer cavity is formed by drilling a micro-hole at the cleaved fiber...
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This study presents the design and fabrication of a Vernier-effect-enhanced Fabry-Perot interferometric (FPI) optical fiber sensor employing a single mode fiber-hollow core fiber-single mode
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Mechanism modeling and analysis of optical component damage... Ultra-high sensitivity fiber optic FPI temperature sensor Numerical modeling and optical
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Integrating the MVE into fiber-optic FPI sensors enhances sensitivity to RI variations within the fiber core and ambient environment, without augmenting manufacturing costs or sensor volume.
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In this paper, a cost-effective and miniaturized instrument is proposed, which is based on a tunable modulated grating Y-branch (MG-Y) laser for rapid temperature measurement using a
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Imagine a world where the Internet doesn''t just connect but senses—detecting earthquakes, monitoring battery health, or safeguarding
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Humidity sensitive materials of polymethyl methacrylate (PMMA), polyvinyl alcohol (PVA), and polyethylene glycol (PEG) film have been elaborated
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A high-sensitivity fiber optic temperature sensor based on the enhanced harmonic Vernier effect (HVE) is proposed, which consists of two Fabry–Perot interferometers (FPI) that are
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