A5019263573- Advanced Fiber Laser Technologies
- Photonic Crystal and Fiber Optics
- Advanced Fiber Optic Sensors
- Laser-Matter Interactions and Applications
- Solid State Laser Technologies
- Advanced Battery Materials and Technologies
- Advancements in Battery Materials
- Time Series Analysis and Forecasting
- Traffic Prediction and Management Techniques
- Advanced Battery Technologies Research
- Advanced Image Fusion Techniques
- Stock Market Forecasting Methods
- Recommender Systems and Techniques
- Fault Detection and Control Systems
- RNA Interference and Gene Delivery
- Video Analysis and Summarization
- Advanced biosensing and bioanalysis techniques
- Laser Material Processing Techniques
- Anomaly Detection Techniques and Applications
- Image Enhancement Techniques
- Laser Applications in Dentistry and Medicine
- Biopolymer Synthesis and Applications
- Diamond and Carbon-based Materials Research
- Big Data Technologies and Applications
- Advanced oxidation water treatment
Shenzhen Technology University
2025
Shenzhen University
2024-2025
Shandong University of Technology
2020-2024
Beijing Institute of Technology
2022-2023
Northeast Electric Power University
2023
Newcastle University
2022
Ningbo University
2019
East China University of Science and Technology
2019
The conventional near-infrared laser transmission welding (LTW) process for joining dissimilar transparent polymers is limited by the need to incorporate optical absorbents, which compromises joint performance and raises biocompatibility concerns. To address these issues, this study proposed a surface modification technique using femtosecond ablation prior process. Experiments involved 520 nm of polymers, followed LTW an 808 laser, with subsequent characterization mechanical property...
In our work, a new-type, to the best of knowledge, ferromagnetic insulator and its nonlinear optical absorption characteristics related ultrafast modulation applications were investigated. Cr2Si2Te6 saturable absorbers (SAs) with depth intensity 9.7% 3.5MW/cm2 fabricated. By adjusting pump power 120 mW optimizing polarization state, traditional soliton operations obtained successfully; corresponding duration pulse fundamental repetition rate ∼1.33ps 6.70 MHz, signal-to-noise ratio was 50 dB....
Ferromagnetic semiconductor chromium sulfide (Cr
Abundant research findings have proved the value of two-dimensional (2D) materials in study nonlinear optics fiber lasers. However, there remains two problems: how to reduce start-up threshold, and improve damage lasers based on 2D materials. A 15.1 mW low-threshold mode-locked laser, a Cr2Si2Te6 saturable absorber (SA) prepared by liquid-phase exfoliation method, is demonstrated successfully this work. This provides useful economical method produce SAs with low insertion loss saturation...
We present a nonlinear amplifying loop mirror-based mode-locked fiber laser. By adjusting the pump power, proposed laser exhibits dissipative soliton resonance (DSR)-like pulse operation with maximum width of 150 ns. Subsequently, three-stage Tm
Here, we demonstrate a compact and efficient high-power mid-infrared supercontinuum (MIR-SC) laser source based on tunable noise-like pulse (NLP) fiber system short section of single-mode germania-core (GCF). The NLP all-polarization-maintaining can deliver the maximum output power ∼30.6 W broadband spectrum (∼1.8-2.7 µm) with single-stage amplifier. By directly pumping only ∼6.5 cm-long GCF core diameter ∼3.5 µm, MIR-SC (spectral coverage ∼1.5-3.3 ∼25.2 conversion efficiency ∼81.2% is...
Membrane filtration fouling has become a significant issue that restricts its wide application. The electrocoagulation (EC) technique combines variety of synergistic pollutant removal technologies (including flocculation, redox, and air flotation), which can be an ideal pretreatment process for membrane filtration. In this work, novel Cu2+-doped polypyrrole-coated stainless steel mesh (Cu/PPy–SSM) was prepared by direct current electrodeposition, it introduced in electrocoagulation-membrane...
In this paper, an indium antimonide (InSb) saturable absorber (SA) was successfully fabricated. The absorption properties of the InSb SA were studied, and they show a modulation depth intensity 5.17% 9.23MW/cm2, respectively. By employing building ring cavity laser structure, bright-dark soliton operations obtained by increasing pump power to 100.4 mW adjusting polarization controller. As increased from 180.3 mW, average output 4.69 9.42 corresponding fundamental repetition rate 2.85 MHz,...
Multivariate time series (MTS) analysis and forecasting are crucial in many real-world applications, such as smart traffic management weather forecasting. However, most existing work either focuses on short sequence or makes predictions predominantly with domain features, which is not effective at removing noises irregular frequencies MTS. Therefore, we propose WaveForM, an end-to-end graph enhanced Wavelet learning framework for long FORecasting of WaveForM first utilizes Discrete Transform...
By 2022, the total length of roads in Tibet Autonomous Region reached 121,447 kilometers. Due to unique geological conditions Tibet, various natural disasters such as earthquakes, mudslides, landslides, avalanches, and strong winds frequently occur. Along Sichuan-Tibet Highway alone, over 300 happen each year, significantly impacting region’s economic development. This study focuses on complexity randomness disaster mechanisms combines Markov chain theory improve accuracy prediction data for...
Recently, germanium (Ge) was also considered as the two-dimensional (2D) material saturable absorber (SA) because of its excellent nonlinear absorption properties. However, research Ge SA Er-doped fiber laser is still rare. In this work, bound state solitons were demonstrated in laser. To be best our knowledge, no previous work has ever achieved that. Three kinds with 9.77 MHz fundamental frequency investigated, indicating that optical characteristics to promote development soliton.
In this work, a saturable absorber (SA) based on Cr2Si2Te6 (CST), with modulation depth of 14.90% and saturation intensity 4.81MW/cm2, was prepared by liquid phase stripping method. Its nonlinear optical properties application in obtaining mode-locked pulse output bright-dark solitons are studied. When the pump power 1250 mW, maximum 26.60 mW; energy single 15.02 nJ, repetition rate 1.77 MHz. Our results provided evidence that CST can be used as an excellent SA for laser demonstrated...
Multivariate time series data is ubiquitous in the real world, and study of its modeling analysis a popular research topic meteorology, transportation, finance other fields. In these studies, classical statistical methods are primarily aimed at single analysis, while deep learning demonstrates power to mine patterns from massive amounts data. A major application studies analyze collected historical sequence information predict what will happen over future. Currently, recurrent neural...
The TiSe2 nanosheets were prepared by means of ultrasound-assisted liquid phase exfoliation (LPE) and the nonlinear saturable absorption properties experimentally investigated. modulation depth, saturation intensity nonsaturable absorbance 1T-TiSe2 SA 15.7%, 1.28 MW/cm2 8.2%, respectively. Taking advantage TiSe2-based SA, a passively Q-switched erbium-doped fiber (EDF) laser was systematically demonstrated. pulse repetition rates varied from 24.50 kHz up to 73.79 with increasing pump power....
Different wavelengths of light have different attenuation during underwater transmission, and the same wavelength is also inconsistent in various waters. This loss spectral information causes varying degrees color distortion images. In this paper, a novel correction algorithm based on scattering statistics characteristics proposed. The fact that exists both atmosphere underwater. Firstly, we statistically analyze three kinds images summarize characteristics. Secondly, compensation strategy...