A5013649895- Advanced Fiber Optic Sensors
- Photonic and Optical Devices
- Photonic Crystal and Fiber Optics
- Advanced Fiber Laser Technologies
- Semiconductor Lasers and Optical Devices
- Advanced MEMS and NEMS Technologies
- Fault Detection and Control Systems
- Analytical Chemistry and Sensors
- Semiconductor materials and devices
- Smart Grid Energy Management
- Optimal Power Flow Distribution
- Music and Audio Processing
- Advancements in Semiconductor Devices and Circuit Design
- Electric Power System Optimization
- Neurological Disease Mechanisms and Treatments
- Advanced Sensor and Control Systems
- Metamaterials and Metasurfaces Applications
- Digital Media and Visual Art
- Non-Destructive Testing Techniques
- Grouting, Rheology, and Soil Mechanics
- Catalysis and Hydrodesulfurization Studies
- Inflammation biomarkers and pathways
- Ferroelectric and Negative Capacitance Devices
- Evaluation Methods in Various Fields
- Orbital Angular Momentum in Optics
University of Science and Technology Beijing
2025
Shanghai Electric (China)
2024
Hefei Normal University
2024
University of Jinan
2023-2024
Zhejiang University of Technology
2024
Beihang University
2022-2024
Wuhan University of Technology
2017-2023
Huazhong University of Science and Technology
2022
Guangdong University of Technology
2021-2022
Southwest Jiaotong University
2021
An integrated fiber Michelson interferometer (MI) based on an asymmetrical twin-core (TCF) cascaded with a side-hole (SHF) for multiparameter sensing is proposed and demonstrated. The TCF consists of centric core eccentric same refractive index. the aligned SHF one air hole SHF. Because off axis fiber, bend or twist will cause variation optical path difference theMI, which makes theMI structure be suitable vector curvature measurements. Experimental results show that bending sensitivities...
A simultaneous strain and directional bend sensor based on an in-fiber dual air-cavity Fabry-Perot interferometer (FPI) is presented demonstrated. The hybrid structure composed of a fraction side-hole fiber fusion spliced in between seven-core multimode fiber. bending sensitivities the two FPIs at opposite most sensitive directions are 120.5 pm/m <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-1</sup> -122 , 110.4 -121.1 pm/m-1, respectively....
We experimentally demonstrate a temperature compensated highly sensitive refractometer based on integrated parallel Fabry-Pérot interferometers (FPIs). The sensor is constructed by splicing fraction of hollow-core fiber between seven-core and single-mode fiber, which simultaneously forms an open cavity sealed cavity. two FPIs are mutually independent. opening provides entire interaction filled liquid/gas guided light with high sensitivity 1096.9 nm/RIU, but that the closed one contrary,...
We propose a compact ultrasensitive gas pressure sensor based on two cascaded fiber Mach-Zehnder interferometers (MZIs) with Vernier effect. Each MZI is composed of hollow core (HCF) sandwiched in between short multimode fibers. The lengths the HCFs MZIs are set little different order to generate an envelope transmission spectrum structure for effect sensing. HCF one opened make air hole connect external environment and act as sensing element. other kept closed serving reference have quite...
Technology of shield tunneling has been widely used in modern city subway system building, however, due to the limit urban construction land resources, it is inevitable for new building structures conflicted with existing one. Thus, essential taking correct measures guarantee safety structure. In this case, a typical case metro tunnel crossing through overpass bridge piles underpinning project studied by numerical method and site field monitoring. According structure, geological conditions...
A highly sensitive vector curvature sensor based on a triple-core fiber (TCF) interferometer is proposed and demonstrated. The TCF composed of piece that fusion spliced to standard single mode (SMF). taper fabricated at the near TCF-SMF junction couple light from input SMF into three cores recouple reflected end back SMF, which forms three-beam Michelson in TCF. Such has unique characteristic its sensitivity greatly affected by optical path differences (OPD) intensities transmitted As...
A type of stable integrated couplers based on the twin-core fiber (TCF) is proposed and demonstrated. The coupler fabricated by heating a piece TCF with thermally diffused core technique. During process, dopant in cores will diffuse to cladding which leads expansion mode fields. As result, optical power two can be coupled each other. Because external shape coupling region does not change, such have high mechanical strength responses temperature, strain, surrounding refractive index changes....
A quasi-distributed directional bending sensor based on fiber Bragg gratings (FBGs) array in triangle-four core (TFCF) is proposed and experimentally demonstrated. The was composed of a single mode (SMF) TFCF. piece TFCF heated by thermal diffusion technique (TDT) to fabricate an integrated coupler, which couples the optical power from central into side cores. Considering size Gaussian beam effective distribution cross section excimer laser, we fabricated FBGs samples defocusing phase mask...
We proposed and experimentally investigated the torsion sensing performance of tilted long period gratings (TLPG) based on eccentric dual core fiber (EDCF). The EDCF is composed a centric an with large separation. asymmetrical structure high refractive index modulation TLPG can bring some directional sensitivity advantages to structure. tested torsional in two optical channels different grating parameters found both cores recognize direction. When tilt angle 80°, maximum are −0.381...
A phase-shifted eccentric core fiber Bragg grating (PS-ECFBG) fabricated by electric arc discharge (EAD) is presented and demonstrated. It composed of a fraction fusion spliced in between two pieces commercial single mode fibers, where PS-FBG was written. The EAD this work could flexibly change the amount phase-shift changing number or duration. Because offset location ultra-narrow resonant peak PS-ECFBG, it has higher accuracy for measuring directional bend. elongation compression keep...
Abstract In this study, two-step pyrolysis of biomass-rich municipal solid waste was studied on nickel supported ZSM-5 catalyst. the first stage reactor, constant temperature ( T = 550 °C) applied, and in second stage, reactions took place at 500, 700 850 °C. Effects operating parameters (temperature 700, °C, steam rate 1, 5 g/h) catalyst load (0.5, 1.0, 2.0) were yields compositions, particularly hydrogen contents. order to determine significance parameters, response surface methodology...
Pressure sensitivity and gas desorption time are two key parameters that determine the performance of pressure sensors. Polydimethylsiloxane (PDMS) film shows potential in highly sensitive sensor, however trade-off between high low presents a challenge. This article proposes novel sensor with ultra-high ultra-fast based on tapered fiber coated Polydimethylsiloxane/Metal Organic Framework (PDMS/MOF) composite film. By doping specific MOF amino groups into PDMS, adsorption capacity can be...