A5016734996- Advanced Fiber Optic Sensors
- Optical Network Technologies
- Advanced Fiber Laser Technologies
- Photonic and Optical Devices
- Advanced Photonic Communication Systems
- Photonic Crystal and Fiber Optics
- Semiconductor Lasers and Optical Devices
- Plasmonic and Surface Plasmon Research
- Magneto-Optical Properties and Applications
- Advanced Optical Network Technologies
- Optical Coatings and Gratings
- Laser-Matter Interactions and Applications
- Advanced Sensor and Control Systems
- Geophysics and Sensor Technology
- Optical Systems and Laser Technology
- Metamaterials and Metasurfaces Applications
- Optical Coherence Tomography Applications
- Optical measurement and interference techniques
- Terahertz technology and applications
- Advanced MEMS and NEMS Technologies
- Neural Networks and Reservoir Computing
- Solid State Laser Technologies
- Ultra-Wideband Communications Technology
- Photonic Crystals and Applications
- Gyrotron and Vacuum Electronics Research
Beijing Jiaotong University
2016-2025
Beijing Satellite Navigation Center
2024
Xingtai University
2008
Northern University Bangladesh
2003-2004
A high sensitivity D-shaped hole double-cladding fiber temperature sensor based on surface plasmon resonance (SPR) is designed and investigated by a full-vector finite element method. Within the fiber, hollow D-section coated with gold film then injected in thermo-optic coefficient liquid to realize for SPR sensor. The numerical simulation results show that peaking loss of hugely influenced distance between core thickness film, but almost insensitive above parameters. When −2.8×10−4/°C,...
A dual-parameter sensor based on a photonic crystal fiber (PCF) concatenated with Bragg grating (FBG) is proposed and experimentally demonstrated for simultaneous measurement of magnetic field temperature. Novel fluids (MF) different concentration surfactant are filled in the air holes PCF. The property only determined by PCF, while temperature co-determined PCF FBG. Experimental results show that wavelength shift has good linearity corresponding field. Temperature sensitivity proportional...
In this work, genetic algorithm (GA) is employed to optimize convolutional neural networks (CNNs) for predicting the confinement loss (CL) in anti-resonant fibers (ARFs), achieving a prediction accuracy of CL magnitude reached 90.6%, which, best our knowledge, represents highest date and marks first instance using single model predict across diverse ARF structures. Different from previous definition structures with parameter groups, we use anchor points describe these structures, thus...
We propose and analyze a photonic-assisted periodic triangular-shaped pulses generator, in which continuous wave (CW) laser is connected to dual electrode Mach-Zehnder modulator (De-MZM), then the De-MZM with normal dispersion fiber or element. A radio frequency (RF) sinusoid directly drives obtain optical subcarrier modulation carrier suppression. By carefully setting physical parameters, generated harmonics of intensity can be corresponding Fourier components typical triangular pulses....
A novel fiber sensor based on surface plasmon resonance (SPR) is designed to realize the simultaneous measurement of temperature and refractive index (RI). In order obtain SPR effect both in x- y-polarized directions, double-side polished covered with gold silver horizontal vertical surfaces, respectively. The numerical simulation results demonstrate that sensitivities loss spectrums are 0.1371 0.04736 nm/°C, RI 561.4286 457.1429 nm/RIU, Therefore, variation can be measured simultaneously by...
A switchable multi-wavelength erbium-doped fiber laser based on parallel dual Lyot filters is experimentally demonstrated in this paper. new type of parallel-structure filter designed and its spectrum simulated. The structure simple. spectra the changes when adjusting polarization states controllers. Due to characteristics wavelength competition, output wavelengths can be single wavelength, wavelengths, triple wavelengths. When lasing tunable with a tuning range ~13 nm. interval adjusted...
A novel individually switchable, widely tunable, and interval-adjustable multi-wavelength erbium-doped fiber laser (EDFL) is experimentally demonstrated in this article. It based on the cascaded structure of SMF-TMF-SMF (STS) filter Lyot with assistance nonlinear polarization rotation (NPR). The homemade STS a comb that formed by splicing section two-mode (TMF) two segments single-mode (SMF) core-offset structures. Compared other multimode interferences, spectrum more uniform. When inserted...
An improved erbium-doped fiber laser configuration for achieving single-polarization, switchable dual-wavelength of orthogonal polarizations oscillations at room temperature is proposed. For the first time, two Bragg gratings (FBGs) directly written in a polarization-maintaining (PM) and photosensitive (PMPEDF) as wavelength-selective component are used linear cavity. Due to polarization hole burning (PHB) enhanced by FBG (PMFBG), can be designed operate stable or wavelength-switching modes...