A5039960891- Advanced Fiber Optic Sensors
- Photonic and Optical Devices
- Semiconductor Lasers and Optical Devices
- Non-Invasive Vital Sign Monitoring
- Advanced Measurement and Metrology Techniques
- Photonic Crystal and Fiber Optics
- Analytical Chemistry and Sensors
- Wood and Agarwood Research
- Optical Coherence Tomography Applications
- Textile materials and evaluations
- Cultural Heritage Materials Analysis
- Spectroscopy and Laser Applications
- melanin and skin pigmentation
- Advanced Sensor and Energy Harvesting Materials
- Photoacoustic and Ultrasonic Imaging
- Photonic Crystals and Applications
- Advanced MEMS and NEMS Technologies
- Optical Systems and Laser Technology
- Concrete Corrosion and Durability
Jiangsu University
2014-2024
Nankai University
2016-2020
National Museum of China
2020
A novel relative humidity (RH) sensor based on a mismatching fused Mach–Zehnder interferometric (MFMZI) fiber structure which can be operated without coating moisture sensitive material, has been proposed and experimentally demonstrated. segment of SMF with around 1200 μm in length is sliced between lead-in lead-out SMFs to construct the U-shaped cavity as sensing part. The optimal section result definite improvement RH sensitivity. maximum sensitivities MFMZI reach 0.1667 nm/%RH 0.62 dB/%RH...
We propose and demonstrate a novel refractometric sensor based on optofluidic technology in photonic crystal fibers with composite core. The core consisting of ring-like fluid channel around the refractive index matching is architected within fibers. A different water-like analyte filled into same turn to form steady microflows core, can be detected by observing resonant coupling between solid-core modes. sensitivity 1.33 about −1.11 × 103 nm per unit. Simulations indicate that sensing...
The design of a bending angle sensor consisting plastic optical fibers (POFs) embedded in transparent tubing is proposed for the detection human joints. Highly sensitive sensing achieved by between two fiber end faces which functioning as hollow-core with air inside core and cladding. Simulation results based on ray tracing method show that when was bent, both end-face coupling internal reflection mechanisms coexisted beam transmission process, being main mechanism at large angle. A...
This paper presents a novel mismatching fused Mach-Zehnder interferometer (MFMZI) for noncontacted steel corrosion monitoring in real time. Without sputtering or contacting any film on the surface of MFMZI, rate bars can be evaluated with ultrasensitivity even when concentration NaCl solution is only 0.05 wt%. Moreover, simulations have been carried out variations water-based to understand sensitivity response as function effective refractive index (RI). The simulation and experimental...
In this paper, a polymer optical fiber (POF) bending sensor based on tapered structure is proposed. At the outset, POFs with different sizes are prepared by flame-heated drawing technique, characteristics of POF under cone waist diameters investigated. The experimental results show that sensitivity largest when diameter 1/3 POF, where size latter 500μm. On basis, dual U-shaped angle designed. measurement shows its angular improved to 0.0871 dB/°, linearity 0.994, and sensing 6 times...
Abstract A compact fiber-optical curvature sensor based on the hollow-core fiber (HCF) assisted microbubble Mach-Zehnder interferometer (HMZI) is proposed and experimentally demonstrated. Transmission spectral characteristics of have been investigated with a maximum intensity-interrogated sensitivity -1.48 dB/m − 1 in range from 1.22 m to 3.46 . The temperature-induced instability measured below 0.30 dB large temperature 35°C 60°C, suggesting good resistance performance. overall sensing size...
High-sensitivity bending angle sensing based on tapered POF configuration is proposed. The performance enhanced by arranging the section with double U-shaped and encapsulated PDMS film. experimental preparation process of film package was presented in detail, fabricated sensor tested. results show that sensitivity can reach 0.070 dB/° a linearity 0.995 wide range 0-105°. then applied for joint detection. quickly respond to small pressures, speed be distinguished detection bending. designed...