- 标题
- 摘要
- 关键词
- 实验方案
- 产品
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[OSA Optical Fiber Sensors - Lausanne (2018..-..)] 26th International Conference on Optical Fiber Sensors - Combined temperature and RI sensor for exploring the phase transitions of ethanol solutions
摘要： A fiber optic interferometer based on core diameter mismatch is used in reflection mode to study the behavior of ethanol solutions with regards to concentration dependent thermal properties and phase transitions. A method to simultaneously measure both temperature and ethanol concentration in systems with non-linear sensitivities has been developed and characterized.
关键词： fiber optics sensors,interferometry
更新于2025-09-16 10:30:52
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[IEEE 2019 18th International Conference on Optical Communications and Networks (ICOCN) - Huangshan, China (2019.8.5-2019.8.8)] 2019 18th International Conference on Optical Communications and Networks (ICOCN) - High-Sensitive All-Fiber Fabry-Perot Interferometer Gas Refractive Index Sensor Based on Lateral offset Splicing and Vernier Effect
摘要： Abstract—A high-sensitivity all-fiber Fabry-Perot interferometer (FPI) gas refractive index (RI) sensor based on lateral offset splicing and Vernier Effect is proposed. The sensing head consist of a reference FPI and a sensing FPI. A reference FPI and the sensing FPI is connected by two circulators. The sensing FPI is an open cavity made by lateral offset splicing of single mode fibers (SMFs), and the reference FPI is spliced by SMF and fiber tube. The Cascaded double-cavity produces a Vernier Effect and improves the sensitivity of gas RI. Experimental results show that the sensor has a high gas RI sensitivity of 16335.96 nm/RIU. The sensor has broad application prospects in gas composition detection, environmental monitoring, biosensors and other fields.
关键词： Fabry-Perot Interferometer,Fiber Optics Sensors,Vernier Effect,Gas Refractive Index Measurement
更新于2025-09-16 10:30:52
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[OSA Optical Fiber Sensors - Lausanne (2018..-..)] 26th International Conference on Optical Fiber Sensors - Highly sensitive fiber temperature sensor based on antiresonant effect cascaded with multimode interference
摘要： We experimentally demonstrated a highly sensitive fiber temperature sensor based on anti-resonant effect cascaded with multimode interference, the sensitivity of 26.73 pm/°C and -275.39 pm/°C corresponding to the aforementioned two mechanisms can be respectively obtained.
关键词： Optical sensing and sensors,Fiber optics components,Integrated optical devices,Fiber optics sensors
更新于2025-09-12 10:27:22
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[OSA Optical Fiber Sensors - Lausanne (2018..-..)] 26th International Conference on Optical Fiber Sensors - Mitigation of Output Fluctuations due to Residual State of Input Polarization in a Compact Current Sensor
摘要： We propose and demonstrate a new compact current sensor and technique capable to mitigate the residual state of polarization variation of partially depolarized optical sources. Sensor can operate from 0 to 300A and, is designed to be applied in electric distributed networks to power quality measurement.
关键词： Fiber optics sensors,Fiber optics and optical communications
更新于2025-09-12 10:27:22
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[OSA Optical Fiber Sensors - Lausanne (2018..-..)] 26th International Conference on Optical Fiber Sensors - Monitoring of the Drilling-Induced Temperature Profile in CFRP Plates Using Distributed Optical Fiber Sensing
摘要： Distributed fiber sensing based on optical frequency-domain reflectometry is proposed for monitoring the two-dimensional temperature profile resulting during drilling carbon reinforced fiber polymers. Experimental results demonstrate the unique features and advantages provided by this technology.
关键词： Scattering,Rayleigh,Temperature,Fiber optics sensors
更新于2025-09-12 10:27:22
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[OSA Optical Fiber Sensors - Lausanne (2018..-..)] 26th International Conference on Optical Fiber Sensors - High Pressure FBG Sensor based on Compression Using a Single Point Attached Fiber in a Ferrule
摘要： A compact high pressure FBG sensor using a single point attached fiber in a ferrule was proposed. It was compared theoretically, by simulations and experimentally to FBG fully attached to the ferrule conception. Results show that the proposed conception has 3.2 to 4.2 times higher sensitivity, suited to use in internal combustion chamber engine.
关键词： Fiber optics sensors,Fiber optics and optical communications
更新于2025-09-11 14:15:04
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[OSA Optical Fiber Sensors - Lausanne (2018..-..)] 26th International Conference on Optical Fiber Sensors - All-Fiber Electro-Optic Dual Optical Frequency Comb for Fiber Sensors
摘要： We present a new technique for generating a Dual Optical Frequency Comb and we apply the technique on a Chirped Fiber Bragg Grating sensor to demonstrate quasi-static absorption measurements. In addition, it can be also applied to dispersion measurements. This technique is able to generate RF mapping of two optical frequency combs without the use of an acousto-optic modulator.
关键词： Spectroscopy,Electro-optical devices,Fiber optics sensors
更新于2025-09-11 14:15:04
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High sensitivity strain sensor based on twin hollow microspheres
摘要： A sensor based on 2 hollow core microspheres is proposed. Each microsphere was produced separately through fusion splicing and then joined. The resultant structure is a Fabry-Perot interferometer with multiple interferences that can be approximated to a 4-wave interferometer. Strain characterization was attained for a maximum of 1350 με, achieving a linear response with a sensitivity of 3.39 (cid:1) 0.04 PM/με. The fabrication technique, fast and with no chemical hazards, as opposed to other fabrication techniques, makes the proposed sensor a compelling solution for strain measurements in hash environments.
关键词： strain measurement,fiber optics sensors,Fabry-Perot
更新于2025-09-10 09:29:36
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Simultaneous measurements of temperature and pressure with a dual-cavity Fabry-Perot sensor
摘要： A fiber-optic dual-cavity Fabry-Perot interferometric sensor for the simultaneous measurement of temperature and pressure is proposed and experimentally demonstrated. The sensor cascades a fiber-optic intrinsic Fabry–Perot interferometer (IFPI) and an extrinsic Fabry–Perot interferometer (EFPI). The IFPI is used as the temperature sensor and the EFPI is used as the pressure sensor. The pressure sensor is based on a diaphragm-free structure, and can work stably at high temperature. Two optical path differences are interrogated simultaneously by using the fast Fourier transform-based white-light interferometry and the peak-to-peak method. Experimental results show that the proposed sensor exhibits a temperature sensitivity of 29.63 nm/°C within the temperature range of 40-1100 °C, and a pressure sensitivity of 1465.8 nm/MPa within the pressure range of 0-10 MPa at the room temperature.
关键词： pressure measurement,femtosecond laser micromachining,fiber optics sensors,Fabry-Perot interferometers,temperature measurement
更新于2025-09-04 15:30:14