This paper deduces and summarizes the methods of sensitivity enhancement in interferometer based fiber optical sensors, including the derivation of the sensing principles, key characteristics, and recently-reported applications. The modal coupling interferometer is taken as an example to derive the. Fiber-optic sensing (FOS) technology has emerged as a cutting-edge research focus in the sensor field due to its miniaturized structure, high sensitivity, and remarkable electromagnetic interference immunity. Sensors and Actuators A: Physical, 303, Article 111833. 111833 This manuscript is distributed under a Creative Commons Attribution-NonCommercial-NoDerivs License.
Most fiber optic magnetostrictive current sensors usually have a large current measurement range and high sensitivity, which can achieve multi-point current synchronous monitoring and have
This paper conducts a systematic analysis of the sensing mechanisms in fiber-optic pressure sensors, with a particular focus on the performance optimization effects
Abstract The strain sensitivity coefficient for a surface-mounted fibre optic sensor is strongly affected by the type of adhesive material used for its installation. In the present study, appropriate strain
Optical fiber sensors based on an interferometer structure play a significant role in monitoring physical, chemical, and biological parameters in
In this study, the short-term creep effect (STCE) on strain transfer from fiber-reinforced polymer (FRP) strips to fiber Bragg grating-optical fiber (FBG-OF) sensors was investigated.
Abstract Fiber-optic sensing (FOS) technology has emerged as a cutting-edge research focus in the sensor field due to its miniaturized structure, high
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...
A novel plasmonic sensor based on a photonic crystal fiber has been fabricated. Experimental results show that 2 cm is an optimal fiber length of the
Here, a novel fiber-optic temperature sensor based on Vernier effect with switchable sensitivities and dynamic ranges was theoretically proposed and experimentally demonstrated.
Abstract In this work, we propose a novel sensor based on two parallel Fabry-Pérot interferometers (FPIs) and the Vernier effect, achieving temperature and pressure sensing. Both
<p>To improve the sensitivity measurement of temperature sensors, a fiber optic temperature sensor structure based on the harmonic Vernier effect with two parallel fiber Sagnac interferometers (FSIs)
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The Vernier effect has been successfully applied to various fiber-optic sensors as a way to increase sensitivity. The harmonic Vernier effect (HVE) serves as an extension of the Vernier effect.
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This paper presents a novel ultra-high sensitivity optical fiber sensor with a large measurement range. The sensor has been used for the experimental study of the dual parameters of
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