A5073787575- Advanced Fiber Optic Sensors
- Photonic and Optical Devices
- Photonic Crystal and Fiber Optics
- Semiconductor Lasers and Optical Devices
- Advanced Fiber Laser Technologies
- Water Quality Monitoring and Analysis
- Optical Network Technologies
- Analytical Chemistry and Sensors
- Advanced Measurement and Detection Methods
- Spectroscopy and Chemometric Analyses
- Advanced Photonic Communication Systems
- Advanced MEMS and NEMS Technologies
- Advanced Sensor and Control Systems
- Optical Wireless Communication Technologies
- Advanced Optical Sensing Technologies
- Textile materials and evaluations
- Plasmonic and Surface Plasmon Research
- Optical Systems and Laser Technology
- Spectroscopy Techniques in Biomedical and Chemical Research
- Advanced biosensing and bioanalysis techniques
- Optical measurement and interference techniques
- Advanced Sensor and Energy Harvesting Materials
- Photoacoustic and Ultrasonic Imaging
- Magneto-Optical Properties and Applications
- Optical Coherence Tomography Applications
Yanshan University
2015-2024
Changchun University of Science and Technology
2024
China Textile Academy
2023
Donghua University
2023
Changsha University of Science and Technology
2022
ORCID
2021
Hospital of Hebei Province
2015-2017
Nanjing University of Information Science and Technology
2012
We proposed and studied an all-optical modulator based on graphene-microfiber (GMF), prepared GMF by transferring graphene to the surface of tapered region microfiber. The modulation characteristics ultrafast under different light source combinations were studied, was completed. experimental results show that can achieve modulation, broadband pump modulate single-pulse signal light. When is a 1550 nm ASE source, 852 nm, maximum depth 3.92 dB. A 980 laser, 2.966 in this paper has...
A seven-core fiber (SCF) dual parametric sensor based on a taper-biconcave structure is proposed. The end faces of SCF and single-mode (SMF) are discharged to form spherical structure, the structures two fibers fused concave regions. tapered using flame melting method excite interference between fundamental higher-order modes. When external environment changed, effective refractive indices each core mode cladding changed different degrees, which causes changes in spectrum sensor....
A multi-parameter sensor based on dumbbell-shaped double-cladding fiber (DCF) structure cascaded long period grating (LPFG) is proposed and fabricated. It formed by discharging between single mode (SMF) DCF to form a waist-enlarged taper then cascading two LPFGs. When the affected thermal expansion effect, thermo-optic effect elasto-optic resonant peaks inter-mode interference will shift, shifts generated different are also different. By demodulating wavelength shift of three peaks,...
A temperature insensitive vector curvature sensor of photonic crystal fiber (PCF) is presented based on core-offset splicing and waist-enlarged taper. Obvious red blue shifts in transmission spectrum appear at two symmetrical bending directions with length 10, 13, 16, 19 mm 0.12-1.06 m <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-1</sup> . The longer the is, larger sensitivity is. corresponding concave convex are increased average by 0.44...
In recent years, large numbers of jellyfish have congregated in marine areas, leading to a decline other plankton and fisheries. Jellyfish themselves certain toxicity aggression, which serious impact on the safety human life. order detect quantity distribution underwater jellyfish, be more proactive prevention control Aurelia outbreaks, this study proposed method for in-situ detection based improved Faster R-CNN network model. Firstly, real data sets three species Qinhuangdao sea area were...
A refractive index (RI) insensitive temperature sensor based on specialty triple-clad fiber (STCF) is proposed. Based coupling mode theory, the STCF can be equivalent to a rod waveguide and two tube waveguides. Then cladding resonance characteristic of analyzed by calculating different dispersion curves, which indicates that it works only from core fluorine-doped silica cladding, finally wavelength obtained. Two straightforward experiments are performed prove its sensing properties....
In this article, a fiber optic sensor based on double-cladding (DCF) composite tapered structure cascaded long-period gratings (LPFGs) for measuring refractive index (RI), temperature, and axial strain is designed. The two ends of Section DCF are, respectively, fused with single-mode (SMF) LPFG1 to form up-tapers, then the formed into down-taper. Another end LPFG2, center wavelengths LPFGs are different. LPFG1, generate three resonance peaks, namely, dip1, dip2, dip3, whose sensitivity in...
A temperature and strain dual-parameter sensor based on conical four-core fiber (FCF) combined with multimode (MMF) is presented. Mach–Zehnder interferometry prepared by using single-mode (SMF)–MMF–FCF–SMF tapering at the fusion point between FCF SMF. When change, length refractive index of change due to thermal elastic effects. Based corresponding function relationship coefficient matrix method, equation can be obtained. The results show that red shift transmission spectrum occurs increase...
Enhancing the thermal-wet comfort of garments is a key factor in sportswear research. In this study, we designed new three-dimensional moisture conduction structure model, developed double-sided fabrics changed spacer weft-knitted structure, and compared them with single-sided plain stitch cellular fabrics, focusing on morphology, basic structural parameters absorption, quick-drying performance. The findings indicated that fabric consisting 18 tex Tencel 33.3 (96 f) recycled polyester...
A few mode fiber temperature sensor filled with PDMS based on vernier effect is proposed. It uses single fiber(SMF), fiber(FMF), and polydimethylsiloxane(PDMS) to form the SMF-air microcavity-FMF-PDMS-FMF structure. The used as a sensing microcavity. When changes, length refractive index of microcavity will change accordingly, which cause in interference spectrum sensor. And because formed by superposition two microcavities, sensitivity can be obviously amplified measured high sensitivity....