A5067652590- Photonic and Optical Devices
- Semiconductor Lasers and Optical Devices
- Mechanical Behavior of Composites
- Semiconductor Quantum Structures and Devices
- Cellular and Composite Structures
- Optical Network Technologies
- Advanced Photonic Communication Systems
- Structural Load-Bearing Analysis
- Fatigue and fracture mechanics
- Advanced Fiber Laser Technologies
- Thermography and Photoacoustic Techniques
- Mechanical Engineering and Vibrations Research
- Neural Networks and Reservoir Computing
- Nonlinear Photonic Systems
- Natural Fiber Reinforced Composites
- Structural Response to Dynamic Loads
- Electrospun Nanofibers in Biomedical Applications
- Membrane Separation Technologies
- Mechanical stress and fatigue analysis
- Power System Optimization and Stability
- Nonlinear Waves and Solitons
- Topology Optimization in Engineering
- Nanofabrication and Lithography Techniques
- Composite Structure Analysis and Optimization
- Quantum Mechanics and Non-Hermitian Physics
Chinese Academy of Sciences
2019-2025
Changchun Institute of Optics, Fine Mechanics and Physics
2019-2025
Shanghai Electric (China)
2025
University of Chinese Academy of Sciences
2022-2024
Jilin Province Science and Technology Department
2024
Hong Kong University of Science and Technology
2021-2024
University of Hong Kong
2021-2024
Institute of Mechanics
2022-2024
Beihang University
2017-2020
The intelligent soft open point (SOP) has powerful power flow regulation capabilities in the distribution network. If applied to network, it can flexibly cope with output uncertainty of unmanageable distributed energy sources. However, considering investment, operation, and maintenance costs, as well assistance reactive equipment, site selection capacity determination SOP have become an urgent problem be solved. This article proposes optimal configuration strategy a flexible interconnected...
We present a narrow-linewidth, high-power, widely-tunable III-V/Si3N4 hybrid integrated external cavity laser. The laser is composed of reflector semiconductor optical amplifier chip, Si3N4 with triple micro-ring resonators , and chip. achieved side-mode suppression ratio (SMSR) greater than 50 dB across an 89 nm wavelength tuning range. maximum fiber output power reached 101.4mW at the 1550nm. minimized Lorentzian linewidth was 0.252 kHz, minimum RIN -156 dBc/Hz. This exceptional...
Semiconductor lasers operating at the 730 nm peak wavelength have diverse applications, including biomedical diagnostics, agricultural lighting, and high-precision sensing. However, quantum well (QW) materials, commonly employed this wavelength, often fail to simultaneously meet dual requirements of lattice matching bandgap alignment. In study, GaAsP/AlGaInP large strain compensation QW with mismatches -7.533‱ 1.112‱ was developed. Strain utilized address mismatch while ensuring lasing...
A computational homogenization technique (CHT) based on the finite element method (FEM) is discussed to predict effective elastic properties of honeycomb structures. The need periodic boundary conditions (BCs) revealed through analysis for in-plane and out-of-plane shear moduli models with different cell numbers. After applying BCs representative volume (RVE), comparison between volume-average stress performed, a new equality strain energy obtain all non-zero components stiffness tensor...
Semiconductor lasers, characterized by their high efficiency, small size, low weight, rich wavelength options, and direct electrical drive, have found widespread application in many fields, including military defense, medical aesthetics, industrial processing, aerospace. The mode characteristics of lasers directly affect output performance, power, beam quality, spectral linewidth. Therefore, semiconductor with power quality are at the forefront international research laser science. novel...
Experimental and numerical investigations are presented for a theory-guided machine learning (ML) model that combines the Hashin failure theory (HFT) classical lamination (CLT) to optimize accelerate design of composite laminates. A finite element simulation with incorporation HFT CLT were used generate training dataset. Instead directly mapping relationship between ply angles laminate its strength stiffness, multi-layer interconnected neural network (NN) system was built following logical...
Photonic integrated circuits (PICs) play a leading role in modern information and communications technology. Among the core devices PICs is distributed feedback (DFB) multi-wavelength semiconductor laser array. Multi-wavelength arrays can be on single chip have advantages of high stability, good single-mode performance, narrow line width. The wavelength tuning range has been expanded through design DFB array, which an ideal light source for wavelength-division multiplexing systems....
Polarization-insensitive semiconductor optical amplifiers (SOAs) in all-optical networks can improve the signal-light quality and transmission rate. Herein, to reduce gain sensitivity polarization, a multi-quantum-well SOA 1550 nm band is designed, simulated, developed. The active region mainly comprises quaternary compound InGaAlAs, as differences potential barriers wells of components cause lattice mismatch. Consequently, strained quantum well generated, providing with insensitivity...
A novel model for predicting the stiffness of single-lap composites bolted joints is introduced on basis analytical spring-mass model. While previous shows three phases in load–displacement curve jointed composites, newly proposed presents four steps after considering a transition contact force from static friction to sliding friction. It found that transformation happens firstly at surfaces between upper and lower laminates then area bolt heads, causing change joint during phase. Moreover,...
A failure criterion for predicting the damage of honeycomb structures under combined compression and transverse shearing is put forward in this paper. An analytical method using Bloch wave function von Kármán plate theory employed to predict onset based on fact that closely related buckling behavior its core. After obtaining a bunch data points different stress conditions where occurs, envelop cores out-of-plane loads formed fitted by nonlinear function. In order validate proposed criterion,...
High-power single-longitudinal-mode regrowth-free gain-coupled distributed feedback laser diode based on ridge waveguide with periodic current injection is achieved at 990 nm. Our device fabricated only by standard i-line lithography micron-scale precision, obtains an excellent performance high current. A continuous-wave power of over 0.681 W 3 A. The maximum operation up to 0.303 1.4 Narrow linewidth emission has been reached a dB spectrum width less than 1.41 pm. side mode suppression...
Lasers used for space communication, lidar, and laser detection in space-air-ground integration applications typically use a traditional 1550 nm band tunable distributed-feedback Bragg (DFB) semiconductor laser. This has low output power, complex fabrication process, high cost. In this paper, we present gain-coupled surface grating-based DFB that can be fabricated without the of secondary epitaxial growth techniques or high-precision lithography. The periodic electrical injection is to...
The paper presents a wide-bandwidth, low-polarization semiconductor optical amplifier (SOA) based on strained quantum wells. By enhancing the material gain of wells for TM modes, we have extended bandwidth SOA while reducing its polarization sensitivity. Through combination tilted waveguide design and cavity surface thin film design, effectively reduced reflectance SOA, thus decreasing device transmission losses noise figure. At wavelength 1550 nm drive current 1.4 A, output power can reach...
An analytical solution and numerical models are proposed for the buckling post-buckling behavior of honeycomb sandwich structures under edgewise compression. General core crushing due to transverse shear observed in experiment. Based on these phenomena, von Kármán plate theory employed analysis obtained predicting failure structures. Comparison between solutions experiments shows that imperfection pre-bending deformation significantly affects ultimate load structures, resulting before...