A simple fiber sensor based on liquid infiltrated modal interferometer created in hollow core fiber is proposed and demonstrated for temperature and refractive index (RI) sensing with high sensitiviti...
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Abstract: In this work, a highly sensitive material thermal expansion sensor is presented. The optical structure consist of an interferometric fiber sensor and an erbium-doped fiber ring laser
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In this article, an annealing-free fiber-optic high-temperature (1100 °C) sensor based on a diaphragm-free hollow-core fiber (HCF) Fabry-Perot interferometer (FPI) is proposed and experimentally
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An optical fiber Fabry–Perot interferometer (FPI) is constructed for relative humidity measurement by fusion splicing a short hollow core fiber (HCF) to the end of a single-mode fiber and coating the tip of
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The infiltration of the liquids changes the transmission property of the hollow core fiber, and modal interference is introduced in such a section of fiber. Due to the high thermo-optic coefficient of
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The hollow inclusion strain sensors employed for in-situ stress monitor use strain gages to detect strain changes of the rock, and the detected strain
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•Implemented hollow-core fiber / gas cell system and Raman optical testbed, currently testing and characterizing system Technical Accomplishments Hollow-core fiber sensor for Raman
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Hollow-core optical fibers (HCFs) have unique properties like low latency, negligible optical nonlinearity, wide low-loss spectrum, up to 2100 nm,
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Abstract A surface plasmon resonance (SPR) sensor based on the gold-coated hollow fiber (HF) is proposed to realize the detection of refractive index (RI).
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At present, the hollow inclusion cell is based on the traditional resistance strain gauge electrical testing instruments. They are generally
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This work presents a novel concept of interfacing square-core hollow-core waveguides with commercially available optical fibers using 3D nanoprinting,
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Abstract A compact optical fiber ultrasonic sensor based on Fabry-Perot (FP) interferometer is proposed and demonstrated. The sensor consists of a single-mode fiber (SMF)
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To facilitate the sensor fabrication and sensing operation in microstructured optical fiber-based surface plasmon resonance (SPR) sensors for high refractive index (RI) detection, we propose a special
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Here, the incorporation of an Antiresonant Hollow–core Fiber (AR-HCF) section into a nonlinear interferometer, where the AR-HCF section serves
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Recent progress in gas detection with hollow-core microstructured optical fibers (HC-MOFs) and direct absorption/photothermal interferometry spectroscopy are reported. For direct
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An optical fiber temperature sensor based on Mach–Zehnder interferometer and thermo-optic effect of the liquid crystal (LC) in fiber ring laser
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Hollow-core fiber sensor for Raman spectroscopic detection of hydrogen leakage. Side holes are drilled on the fiber to allow rapid infusion of H2 gas from the surrounding.
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In this article, we propose a high-sensitivity F-P cavity sensor for temperature and gas pressure measurement. This sensor is made of two types of
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A parallel dual-cavity fiber-optic Fabry-Perot (F-P) salinity sensor based on hollow core fiber and a ceramic ferrule is proposed. The sensor is comprised of a F-P reference cavity and a F-P
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Hollow core fiber (HCF) optical sensors are used in applications including Li-ion battery research and development (R&D), robotic arms, civil Hollow core fiber
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w [email protected] Abstract—Hollow core antiresonant fibers offer new possibilities in the near infrared and visible spectral range. I show here that the great flexibility of this technology can allow
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Alternatively, the naissance of the hollow-core fiber (HCF), which is constitutive of pure silica without any ion doping , brings about a new base for fiber-optic high-temperature sensors.
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Keywords: hollow-core fibers, photonic-crystal fibers, fiber sensors, fiber optics, curvature sensor 1. Introduction The great and growing interest in hollow-core photonic crystal fibers (HCPCF)
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The proposed fiber optic refractive index sensor possesses both high sensitivity and large dynamic range due to the different refractive index
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Hollow glass micro-spheres, first used to make fibre optic sensors for high hydrostatic pressure, have been interrogated using a high-precision CCD
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We report on our recent investigations carried out in Brazil focusing on the application of hollow-core photonic crystal fibers as platforms for new optical sensors. Herein, we discuss the potentialities of
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In this paper, a compact, maneuverable, highly sensitive optical fiber ultrasonic sensor based on FPI is proposed. The sensor is composed of a single-mode fiber (SMF) and a short section
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HID CELL Digital Hollow Inclusion Cell APPLICATIONS The HID Cell is a proven, reliable and accurate instrument to determine triaxial stress in rock or concrete. Common applications of HID Cells are for
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