A5100458139- Advanced Fiber Optic Sensors
- Photonic and Optical Devices
- Semiconductor Lasers and Optical Devices
- Advanced Fiber Laser Technologies
- Conducting polymers and applications
- Supercapacitor Materials and Fabrication
- Analytical Chemistry and Sensors
- PAPR reduction in OFDM
- Optical Coherence Tomography Applications
- Infrastructure Maintenance and Monitoring
- Nonlinear Optical Materials Studies
- Geotechnical Engineering and Underground Structures
- Structural Health Monitoring Techniques
- Optical Systems and Laser Technology
- Age of Information Optimization
- Geophysics and Sensor Technology
- Layered Double Hydroxides Synthesis and Applications
- Advanced MIMO Systems Optimization
- Electrochemical sensors and biosensors
- Ultrasonics and Acoustic Wave Propagation
- Plasmonic and Surface Plasmon Research
- Grouting, Rheology, and Soil Mechanics
- Advanced Wireless Communication Techniques
- Photoacoustic and Ultrasonic Imaging
- Geotechnical Engineering and Analysis
Universidad del Noreste
2025
Tianjin University
2015-2024
Sun Yat-sen University
2023
Harbin Engineering University
2022
Nanjing University
2021
Xidian University
2019
Huazhong University of Science and Technology
2016-2017
Wuhan National Laboratory for Optoelectronics
2017
Beijing University of Posts and Telecommunications
2014
Aston University
2008-2010
We report on an optical bend sensor based a Bragg grating inscribed in eccentric core polymer fiber. The device exhibits the strong fiber orientation dependence, wide curvature range of ±22.7 m <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-1</sup> , and high sensitivity 63 pm/m .
In this paper, a two-photon polymerization 3d printing process is applied to the fabrication of vernier effect sensor, and polymer Fabry-Perot (FP) microcavity high sensitivity temperature salinity sensor proposed. The experimental results show that when ambient 5°C-35°C measured seawater samples 5‰-40‰, proposed single FP has 118 pm/°C 197 pm/‰, system -2.82 nm/°C 3.13 nm/‰, after sensitization achieved by using fiber coupler. sensitivities are about 23.9 15.9 times higher than those...
We report on a Bragg grating written in an eccentric-cored polymer optical fibre for measurement of strain, bend and temperature. The strain sensitivity achieves 1.13 pm µe -1. temperature response shows negative sign with the thermal -50.1 ?C-1. For sensing, this device exhibits strong orientational dependence, wide curvature range ±22.7 m-1 high 63.3 pm/m-1.
A newly designed phase-locked (PL) Φ-OTDR system was proposed and instrumented. Field tests of water impact, anchor damage towing tide diagnosing were carried out in a natural freshwater lake as well the East China Sea. Personnel movement trajectory monitoring ship flow by buried cable along floodplain Yangtze River. It proved that can monitor real-time status sense surrounding environment existing underwater communication cables, which could be helpful for maintenance itself information collection.
Abstract Electrochemical energy storage and conversion systems (EESCSs), including batteries, supercapacitors, fuel cells, water electrolysis technologies, enabling the direct between chemical electrical energies. They are key to flexible utilization of renewable play an important role in future technologies. The physical properties electrode materials significantly influence performance EESCSs, necessitating development with both high cost‐effectiveness superior electrochemical catalytic...
We report on the temperature response of FBGs recorded in pure PMMA and TOPAS holey fibres. The gratings are fabricated for operational use at near IR wavelengths, using a phase mask CW He-Cd laser operating 325nm. room grating is non-linear characterized by quadratic behaviour temperatures from to glass transition temperature, this permanent change affected thermal history gratings. also first FBG inscription microstructured polymer optical fibres TOPAS. This material fully polymerized has...
A Z-shape fiber structure fabricated by CO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> laser is proposed here for the simultaneous measurement of axial strain and temperature. The simply exposing a single mode (SMF) to focused that causes unbalanced residual stress relaxation between upper surface lower fiber. irradiation also gives rise efficient coupling core cladding modes. Then, Mach-Zehnder interferometer prepared. Experiments...
An optical fiber surface plasma resonance (SPR) sensor with MMF-TCF-MMF structure was designed to realize intelligent recognition of copper ions (Cu2+), and the selective adsorption sensitization achieved by plating a layer Cu2+-imprinted film on gold excitation layer. Combining principle interference SPR, proposed realized detection concentration through measuring refractive index changes caused imprinted film. The SPR can in complex environment exhibits sensitivity -10.05 pm/ppm. has...
The seismic behavior of the anchor joint in shield-driven tunnel is very difficult to determine with conventional methods due extensive simplifications. This paper proposed an improved approach investigate response joint, considering both soil-structure-interaction effect and actual geometric features. Two three-dimensional numerical models were established, including soil-tunnel system refined model joint. A analysis study was first conducted on under different input waves obtain responses...
The demand for phase-sensitive optical time domain reflectometry (φ-OTDR), which is capable of reconstructing external disturbance accurately, increasing. However, φ-OTDR suffers from fading where Rayleigh backscattering traces (RBS) have low amplitude and may be lower than the noise floor. Therefore, signal-to-noise ratio (SNR) reduced. In conventional coherent φ-OTDR, an acoustic modulator (AOM), consists RF driving source acousto-optic crystal, commonly used to generate pulses frequency...
A novel method realized by an adjustable line scanning polarized low-coherence interferometer is proposed and experimentally demonstrated to simultaneously measure pressure temperature. The combination of birefringence wedge compensation plate acts as part adapt various sensors changing the thickness plate. variations temperature manifest shift corresponding interference fringes on infrared array CCD. dual-light-source employed fix over occupation CCD caused SLD with longer coherence length...
Integrated sensing and communication (ISAC) is a significant application scenario in future wireless networks, capability of waveform always evaluated by the ambiguity function. To enhance performance orthogonal time frequency space (OTFS) waveform, we propose novel time-domain interleaved cyclic-shifted P4-coded OTFS (TICP4-OTFS) with improved TICP4-OTFS can achieve superior autocorrelation features both domains exploiting multicarrier-like form after favorable attributes P4 code....
Heterogeneous network (HetNet) where the macro cells are underlaid with low power node (LPN) has been introduced to HSPA+ enhance system performance in a cost-efficient way. But Uplink and Downlink (UL-DL) mismatch issue caused by applying heterogeneous deployment will inevitably limit both uplink downlink system. To mitigate UL-DL effect, E-DCH decoupling was proposed HetNet recently, which discussed 3GPP standardization process. However, some new problems driven from have emerged, one of...