A5100654365- Photonic Crystal and Fiber Optics
- Advanced Fiber Laser Technologies
- Advanced Fiber Optic Sensors
- Solid State Laser Technologies
- Optical Network Technologies
- Fiber-reinforced polymer composites
- Natural Language Processing Techniques
- Topic Modeling
- Laser-Matter Interactions and Applications
- Genomics and Phylogenetic Studies
- Maritime Security and History
- Neurofibromatosis and Schwannoma Cases
- Surface Modification and Superhydrophobicity
- Educational Technology and Assessment
- Hydraulic Fracturing and Reservoir Analysis
- Information Retrieval and Search Behavior
- Icing and De-icing Technologies
- Maritime Navigation and Safety
- Network Security and Intrusion Detection
- Engineering Structural Analysis Methods
- Thermoregulation and physiological responses
- Mechanical Behavior of Composites
- Arctic and Antarctic ice dynamics
- Maritime Transport Emissions and Efficiency
- Hydrocarbon exploration and reservoir analysis
University of Chinese Academy of Sciences
2022-2024
Institute of Semiconductors
2022-2024
Chinese Academy of Sciences
2022-2024
Institute of Automation
2024
Shandong Institute of Automation
2024
Tongji University
2023
Shenyang Aerospace University
2022
Institute of Zoology
2022
Soochow University
2022
First Affiliated Hospital of Soochow University
2022
Abstract Achieving an all-fiber ultra-fast system with above kW average power and mJ pulse energy is extremely challenging. This paper demonstrated a picosecond monolithic master oscillator amplifier at 25 MHz repetition frequency of approximately 1.2 kW, 48 μJ peak 0.45 MW. The nonlinear effects were suppressed by adopting dispersion stretched seed (with narrow linewidth 0.052 nm) multi-mode extra-large mode area; then ultimate bandwidth 1.32 nm moderately broadened 107 ps achieved....
This paper presents a comprehensive experimental study of multi-stable-state output characteristics in an all-fiber laser with acoustic-optical modulator (AOM) as the Q-switcher. For first time, this structure, partitioning pulsed is explored, dividing operating status system into four zones. The characteristics, application prospects, and parameter setting rules for working stable zones are presented. In second zone, peak power 4.68 kW 24 ns was obtained at 10 kHz. narrowest pulse duration...
This paper focuses on term-status pair extraction from medical dialogues (MD-TSPE), which is essential in diagnosis dialogue systems and the automatic scribe of electronic records (EMRs). In past few years, works MD-TSPE have attracted increasing research attention, especially after remarkable progress made by generative methods. However, these methods output a whole sequence consisting pairs one stage ignore integrating prior knowledge, demands deeper understanding to model relationship...
In crowded waters, the incidence of collision accidents multiple vessels has increased significantly, most which can be ascribed to human factors, particularly, decision-making failures and inobservance with International Regulations for Preventing Collisions at Sea (COLREGS). On this basis, an automatic avoidance strategy encounter situations is proposed herein. First all, a COLREGS-complied evasive action mechanism established, determine from give-way vessel stand-on separately. It worth...
Abstract In this work, we experimentally investigate the dependence of stimulated Raman scattering (SRS) effect on seed linewidth a high-power nanosecond superfluorescent fiber source (ns-SFS). The results reveal that SRS in ns-SFS amplifier is significantly influenced by full width at half maximum (FWHM) seed, and there an optimal FWHM 2 nm to achieve lowest our case. first-order power ratio increases rapidly when seed’s deviates from linewidth. By scaling with linewidth, narrowband...
Gallium oxide (Ga<sub>2</sub>O<sub>3</sub>) as a wide bandgap semiconductor material has attracted much attention in the field of solar blind ultraviolet photodetection recently. Localized surface plasmon resonance is considered an effective way to improve performance optoelectronic devices by decorating materials with metal particles. Al nanoparticle potential candidate for photodetectors because its suitable wavelength located range. In this work, preparation...
This research proposed a novel pulse-shaping design for directly shaping distorted pulses after the amplification. Based on principle of we made pulse shaper. With this shaper, successfully manipulate pulse's leading edge and width to achieve an ‘M’-shaped waveform in amplification system. Comparative experiments were conducted within system compare output with without integration The results show significant suppression nonlinear effect upon adding flexible effective shaper can be easily...
We demonstrate a single-stage all-fiber nanosecond amplifier with total average power of greater than 1.4 kW by employing what we believe to be novel multi-cavity passively Q-switched fiber laser as the seed laser. The adopts piece Yb-doped (YDF) saturable absorber (SA), and it includes two external cavities resonating at 1030 nm an internal cavity working 1064 nm, respectively. Using such scheme, stable dual-channel output >35 W, pulse width 45 ns, optical conversion efficiency 72%...
Penile neoplasm is uncommon, and multiple penile schwannomas are even rarer. We report a case of 37-year-old man with on the left side penis, which had been present for more than 10 years without significant enlargement during erection recently associated mild pain. Ultrasonography revealed several subcutaneous heterogeneous hypoechoic penile, larger was approximately 1.9 × 0.9 cm. The patient underwent mass excision, pathology immunohistochemistry confirmed that it schwannoma. followed up 3...
We sequenced the complete mitochondrial genome of Tuberolachnus salignus with a length 16,868 bp, including 13 protein-coding genes, 22 tRNA 2 rRNA control region located between rrnS and trnI, repeat trnS2 trnF. All genes are initiated ATN terminated TAA, except cox1, nad3 nad4 termination T. The is 1,407 which repeats 4.04 times 305-bp unit. Our phylogenetic analysis showed sister to Stomaphis sinisalicis.
This Water level change of upper storage reservoir pumped power station is frequent and big. The leads to freezing damage on adverse impact bank stability in cold zone. For above problems, combining with the running project, using dynamic ice condition image shooting system, vibrating pressure gauge , characters destroyed by coldness action rules slope were studied depth. scientific prevention measures proposed. monitoring period maximum observed 21kPa, magnitude hydraulic structures without...
This article studies the application of information exchange bus which is based on SOA framework, and also mainly elaborates principle work its it all kinds automated system.The bus, as a key technology, solves issue "information isolated island" between electric power production control area management area.The highly stable, secured reliable widely applied in electric-power system by means one 61968 serious standards, standard process wide range requirements optimizing allocation resources.
This paper provides a method to effectively suppress the severe ASE self-saturation when achieving high repetition frequency tunability with output power and narrow pulse width in active Q-switched all-fiber lasers. By studying regularity of system's multi-stable state, we first ensured that laser system operated steady state. Then avoids uneven distribution energy or missing pulses due period bifurcation state chaos adding multiple gain sub-rings within cavity, sub-ring structure itself...