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To achieve highly sensitive measurements of strain, a U-shaped optical fiber sensor (OFS) based on seven-core photonic crystal fiber (SCPCF) was designed. The proposed Mach-Zehnder-based
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A fiber optic temperature sensor with high sensitivity is proposed, utilizing range-extended multi(m)-order interference demodulation. The sensor features an ethanol-filled Fabry-Perot (FP) inline microcavity,
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We have developed a highly sensitive fiber optic sensor that can measure temperature and pressure. The sensor comprises two Fabry–Perot interferometers (FPIs), FPI 1 and FPI 2,
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In this paper, a high-sensitivity extrinsic optical fiber F-P magnetic field sensor based on GMM was presented and prepared. The junction of the SMF and the quartz capillary tube is not
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The prepared device can be used as a promising strain sensor with desirable high sensitivity strain, a relatively large measurement range, and negligible temperature sensitivity.
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In this study, an ultra-high-sensitivity fiber humidity sensor with a chitosan film cascaded Fabry–Perot interferometer (FPI) based on the harmonic
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Abstract A highly sensitive fiber magnetic field sensor with directional identification utilizing multi-longitudinal-mode fiber ring laser (FRL) based on polarization-mode beat frequency (PMBF) is
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We present a fiber optic vernier harmonic sensor for simultaneous detection of temperature and strain in high temperature conditions based on a parallel dual fiber Fabry-Perot
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The sensor we proposed is suitable for biomolecules and chemistry, as its conventional wide detection range with high sensitivity. Most importantly, a new idea of broadening the detection
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A balloon-type optical fiber sensor (OFS) for strain measurement was proposed, and the measurement range was significantly increased with the assistan
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They developed a specialized fiber sensor fabricated from high-strength birefringent fiber coated with a protective polyimide layer, designed to
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A high-sensitive fiber-optic Fabry–Perot sensor with parallel polymer-air cavities based on Vernier effect for simultaneous measurement of pressure and temperature.
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In the field of in situ measurement of high-temperature pressure, fiber-optic Fabry–Perot pressure sensors have been extensively studied and applied in
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Abstract and Figures A novel fiber optic current sensor was prepared based on femtosecond laser processing technology and magnetostrictive material
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In this paper, a modified microfiber-assisted open- cavity (MMA-OC) structure is proposed by introducing two pieces of multimode fiber and a novel sub-millimeter in-line Mach-Zehnder...
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To address the significant errors caused by nonlinear sensitivity in SMM, the combination of convolutional neural network and bidirectional long short-term memory (CNN-BiLSTM) model was
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We designed a high-sensitivity fiber-optic refractive index (RI) sensor based on HVE. The sensor consists of two open Fabry–Perot interferometers (FPIs) connected in parallel.
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Abstract A low-cost way of achieving a high sensitivity optical fiber strain sensor by introducing higher-order interference modes using a torsional multimode fiber (MMF) instead of
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In this study, we present a simple design and low-cost high pressure sensor using polymer optical fiber (POF) based on the intensity-variation technique.
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This systematic sensitivity analysis provides a foundational framework for engineering next-generation fiber-optic sensors that balance resolution, stability, and practical deployment
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In this paper, we propose an arc-shaped misaligned structure (ASMS) MZI sensor based on a single-mode fiber (SMF), and a layer of composite materials was coated onto the sensor to
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Abstract A high-sensitivity temperature sensor based upon an optical fiber Fabry-Perot interferometer (FPI) filled with polydimethylsiloxane (PDMS) is reported that employed a single mode
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Abstract Fibre Bragg grating (FBG) pressure sensors show a great potential in replacing conventional electrical pressure sensors due to their numerous advantages. However, increasing
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An arc-shaped misaligned structure interferometer based on a single-mode fiber is proposed herein, in which a layer of composite material is coated onto the structure to improve its
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A high sensitivity refractive index sensor based on local surface plasmon resonance in hollow-core anti-resonance fiber with wide detection range and high linearity is proposed. Gold
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A novel fiber optic sensor has been developed using suspended core fiber (SCF) to simultaneously measure the refractive index (RI) and temperature of liquids. The innovative design comprises an
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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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This study proposes a compact fiber optic temperature sensor based on PDMS-coated Mach-Zehnder interferometer (MZI) combined with FBG, and it
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