A5028534578- Photonic and Optical Devices
- Optical Network Technologies
- Photonic Crystal and Fiber Optics
- Advanced Fiber Laser Technologies
- Advanced Photonic Communication Systems
- Neural Networks and Reservoir Computing
- Perovskite Materials and Applications
- Quantum Dots Synthesis And Properties
- Advanced battery technologies research
- Advancements in Battery Materials
- Electrochemical sensors and biosensors
- Blind Source Separation Techniques
- Image and Object Detection Techniques
- Advanced Photocatalysis Techniques
- Conducting polymers and applications
- Semiconductor Lasers and Optical Devices
- Advanced Nanomaterials in Catalysis
- Advanced Battery Materials and Technologies
- Sensor Technology and Measurement Systems
- Optical Polarization and Ellipsometry
- Advanced Battery Technologies Research
- Click Chemistry and Applications
- Satellite Communication Systems
- Hand Gesture Recognition Systems
- Orbital Angular Momentum in Optics
Dalian University
2024-2025
Dalian University of Technology
2024-2025
Beijing Normal University
2025
Nankai University
2018-2024
Ningxia Medical University
2023
Abstract Supercontinuum (SC) has opened up possibilities for numerous applications in optical communications, signal processing, metrology, and spectroscopy. generation (SCG) the integrated nonlinear platforms attracted much interest recently, due to its fundamental advantages terms of complementary metal oxide semiconductor compatibility, low power consumption, compact size, cost‐effectiveness. In this paper, latest progress on various types nanophotonic waveguides SCG is reviewed. The...
Abstract The sol–gel method is efficient and cost‐effective for synthesizing SnO 2 sol, wherein nanocrystallites (NCs) are stabilized by electric double‐layer of solvated ions tightly bound to their surface. However, this strong binding makes the removal residues from electron transport layer (ETL) be difficult at low temperatures. This hinders both close contact subsequent growth among adjacent NCs, leading severe carriers scattering grain boundary, adversely affecting electrical properties...
High-baud-rate coherent optical system is essential to support the ever-increasing demand for high-speed applications. Owing recent progress in advanced modulation formats, over 1 Tb/s single-carrier data transmission has been achieved laboratory, and its commercial application envisioned near future. This paper presented trend of increasing baud rate utilizing high-order quadrature-amplitude (QAM), several enabling technologies communication systems. We first discussed QAM digital signal...
Abstract The doping level of 2,2′,7,7′‐tetrakis[N,N‐di(4‐methoxyphenyl)amino]‐9,9′‐spirobifluorene (Spiro‐OMeTAD), a commonly used hole transport layer in perovskite solar cells (PSCs), is crucial for its electrical conductivity and the final photovoltaic performance. routine oxygen‐oxidation strategy falls short achieving high‐level due to sparsity random distribution dopants within solid Spiro‐OMeTAD film. Here use carbon nanohorns (CNH) as promoter significantly enhance reported. unique...
Abstract In the landscape of photovoltaic research, carbon‐based perovskite solar cells (C‐PSCs) have attracted widespread attention due to their outstanding stability. However, compared metal‐based PSCs, power conversion efficiency (PCE) lags markedly behind. The key lies in two primary factors: First, inefficiency carbon electrode transporting and collecting carriers; second, energy level mismatch with adjacent functional layers. These problems increase both charge transport resistance...
In Li-O2 batteries, Li2O2 serves as the primary cathodic material but its wide band gap imparts insulating properties. Regulating composition and morphology of enables construction a novel structure with exceptional electrochemical performance. Herein, we introduce an organic salt containing cobalt ions, acetylacetonate (Co(acac)2), into electrolyte. We exploit cation migration characteristics under electric field to facilitate generation decomposition Co-doped Li2O2, achieving gradient...
In this work, deep learning is used to monitor coherent channel performance with eye diagram measurement. Experiments show that the proposed technique can determine modulation format, optical signal noise ratio (OSNR), roll-off factor (ROF), and timing skew of a quadrature amplitude (QAM) transmitter high accuracy. Trained vanilla convolutional neural network (CNN) MobileNet be utilized jointly above four parameters >98% prediction accuracy for 32 GBd channels phase shift keying (QPSK),...
As the dimension of orbital angular momentum (OAM) is orthogonal to other degrees freedom for photon, such as wavelength, it can be utilized further increase data capacity in wavelength division multiplexing (WDM) systems. However, non-zero dispersion-shifted fiber (NZDSF) OAM mode has not yet been investigated or even proposed. In this work, we propose and design a ring with low chromatic dispersion HE 2,1 mode, which serve NZDSF its corresponding 1,1 mode. A 3.3 ps/(nm·km) at 1550 nm...
Horseradish peroxidase (HRP) has excellent catalytic performance in the field of pollution degradation recent years. However, biocatalysis using a single immobilized HRP is limited absence H2O2. In present work, g-C3N4 with biocompatibility was introduced to produce H2O2 situ, and novel inorganic hybrid g-C3N4/HRP nanoflowers photo-enzyme-coupled catalyst prepared, which could efficiently, rapidly, repeatedly degrade organic pollutant acridine wastewater. The effective synthesis demonstrated...
In industries such as manufacturing and safety monitoring, accurately identifying the shape characteristics of multi-opening objects is essential for assembly, maintenance, fault diagnosis machinery components. Compared to traditional contact sensing methods, image-based feature recognition technology offers non-destructive assessment greater efficiency, holding significant practical value in these fields. Although convolutional neural networks (CNNs) have achieved remarkable success image...
CNN-based deep learning is used to monitor coherent channel performance with eye diagram measurement. For 32GBd-QPSK signals, 99.57% prediction accuracy achieved for 15 40dB OSNR, -15 15ps skew, 0.02 1 ROF.
CNN is used to identify the number of openings, wedge angle and direction multi-opening object with probing Gaussian beam. 97.37% accuracy achieved for different classifications 1° precision up 36 openings.
A designed visual geometry group (VGG)-based convolutional neural network (CNN) model with small computational cost and high accuracy is utilized to monitor pulse amplitude modulation-based intensity modulation direct detection channel performance using eye diagram measurements. Experimental results show that the proposed technique can achieve a in jointly monitoring format, probabilistic shaping, roll-off factor, baud rate, optical signal-to-noise ratio, chromatic dispersion. The VGG-based...
PAM signal performance monitoring is demonstrated using GBDT method combined with AAH, achieving a 97.54% accuracy for jointly 4 parameters, and by moving average preprocessing, the of dispersion above 93%.
CNN-based deep learning is used to monitor coherent channel performance with eye diagram measurement. For 32GBd-QPSK signals, 99.57% prediction accuracy achieved for 15 40dB OSNR, −15 15ps skew, 0.02 1 ROF.
A silicon nitride horizontal slot waveguide with dioxide cladding is designed to achieve flat negative dispersion (<; -600 ps/(nm · km)) over an octave-spanning bandwidth (782 2100 nm). Simulations show that, when a 10-fs pulse 1-W peak power input into 5-cm long waveguide, the width becomes 448 times wider and its reduced 2.23×10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-3</sup> W. After passing through another ideal positive element, we...
A Si <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> N xmlns:xlink="http://www.w3.org/1999/xlink">4</sub> horizontal slot waveguide with SiO xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> cladding is designed to achieve flat negative dispersion over an octave-spanning bandwidth. 448× temporal broadening can be achieved for a 10-fs pulse after 5-cm propagation. Together the inherent low nonlinearity, it could key building block in...
Abstract In this paper, we analyze the modulating retro‐reflector (MRR) channel under different correlated conditions and derived its closed‐form expressions for probability density function, which is helpful to design of practical MRR free space optical (FSO) systems. A series BER performance several perspective modulation schemes investigated FSO communication system over moderate strong fading channels by use Gamma‐Gamma (G‐G) distribution. Simulation results show that effect correlation...
PAM4 signal performance monitoring is demonstrated using CNN-based deep learning. A 98.51% prediction accuracy achieved for jointly multiple parameters including baud rate, probabilistic shaping, roll-off factor, optical signal-to-noise ratio, and chromatic dispersion.
For the latest 400-Gb/s or upcoming 1-Tb/s single-carrier optical fiber communications systems, dual-polarization quadrature amplitude modulation (DP-QAM) based on in-phase (I) and (Q) transmitter is only possible solution. In a coherent DP-IQ transmitter, power difference between I Q branches orthogonally polarized (X Y) channels are known as IQ XY imbalance, respectively. Uncompensated imbalances always troublesome can significantly limit performance in long-haul transmission. this work,...