A5101941732- Advanced Fiber Laser Technologies
- Photorefractive and Nonlinear Optics
- Solid State Laser Technologies
- Photonic and Optical Devices
- Nuclear physics research studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Photonic Crystal and Fiber Optics
- Optical Network Technologies
- Advanced Fiber Optic Sensors
- Seed and Plant Biochemistry
- Advanced NMR Techniques and Applications
- Pulsars and Gravitational Waves Research
- Metal Alloys Wear and Properties
- Semiconductor Lasers and Optical Devices
- Cold Atom Physics and Bose-Einstein Condensates
- Quantum, superfluid, helium dynamics
- Radio Astronomy Observations and Technology
- Microfluidic and Bio-sensing Technologies
- Relativity and Gravitational Theory
- Optical Coatings and Gratings
- High-pressure geophysics and materials
- Laser Design and Applications
- Acoustic Wave Resonator Technologies
- Microstructure and Mechanical Properties of Steels
China Academy of Engineering Physics
2023-2025
Chongqing University of Science and Technology
2024
Changchun University of Science and Technology
2018-2024
Hunan Agricultural University
2024
Northwest A&F University
2017
Jilin Jianzhu University
2014
Ohio University
2002-2005
Texas Advanced Computing Center
2005
In this work, a narrow-linewidth polarization-maintaining (PM) all-fiber amplifier with near-diffraction-limited beam quality and record output power is presented. First, 4.45-kW PM fiber 3-dB linewidth of 0.08 nm root mean square (rms) 0.22 achieved based on optimized phase modulation. However, the sideband spectrum broadens significantly during amplification process, which mainly caused by additional intensity variation injected signal. Meanwhile, an up to 5.04-kW linearly polarized laser...
We present a reliable and all-fiberized single-polarization, high-order mode fiber laser. The experimental setup employed polarization-maintaining ytterbium-doped fibers combination of different Bragg gratings to achieve high purity stable output. system achieved maximum output power 3.8 W, polarization extinction ratio (PER) 96.7%, 95.32% for the LP11 mode. Furthermore, laser demonstrated notable stability; during 120 min stability test, standard deviation was measured at 0.15%, while...
The Faddeev equation for three-body scattering at arbitrary energies is formulated in momentum space and directly solved terms of vectors without employing a partial-wave decomposition. In its simplest form, the identical bosons, which we are using, three-dimensional integral five variables, magnitudes relative momenta angles. This through Pad\'e summation. Based on Malfliet-Tjon-type potential, numerical feasibility stability algorithm solving demonstrated. Special attention given to...
Tartary buckwheat is rich in phenolics and an excellent healthy food source. To evaluate the endogenous affecting physicochemical properties of starch products during processing, varying concentrations (0.5, 1.0, 1.5%) predominant phenols, rutin quercetin, were co‐cooked with (TBS). Rutin quercetin reduced peak final temperatures enthalpy TBS gelatinization, lowered aging retrograded TBS, increased trough viscosity paste its breakdown. The two additives also hardness cohesiveness gels, while...
In this study, a kilowatt-level high-efficiency narrow-linewidth all-fiber Tm3+-doped continuous-wave laser operating at 1.95 μm is demonstrated. Benefitting from an advanced boost design of two-stage main amplifier, it not only effectively manages heat dissipation resulting the high pump-induced quantum defect but also realizes controlled extraction optical gain and improves conversion efficiency. Finally, system has realized output power 1018 W, linewidth 3.8 GHz, slope efficiency 60.0%...
In this paper, we propose a method for narrowing the spectrum in high-power narrow-linewidth polarization-maintaining (PM) fiber amplifiers and investigate its potential suppressing stimulated Brillouin scattering (SBS). method, addition to common phase modulation suppress SBS, precisely designed amplitude is induced generate self-phase PM amplifier. co-modulation way, can be gradually compressed along fiber. Compared alone or fiber-Bragg-gratings (FBGs) based oscillator schemes, which...
In a multi-optical parametric oscillator by pulse pumping, energy conversion process for 1.57 μm and 3.84 light can be expressed time-dependent wave equations. The split-step integration method is used to solve the By analyzing simulation results of output waveform amplifier, it confirmed that back mode competition are important factors affecting oscillation. in an external cavity simulated under different mirror transmittances, crystal working lengths lengths. efficiency increase with...
Abstract In this study, novel high internal phase emulsions (HIPEs) ( φ oil = 0.8) are successfully stabilized using 0.5% w/v starch nanocrystals (SNCs) and 0.05% bull serum albumin (BSA) complex. For purpose, the SNCs made hydrophobic through modifications with different concentrations of BSA (0–0.5%) before being used for synthesizing stable HIPEs. The dispersion solutions show that composite particles better at stabilizing when concentration is least w/v. Similarly, inner gel texture in...
It was reported that the optical field fluctuations in self-defocusing media can be described by sound waves propagating a two-dimensional photon-fluid which is controlled driving laser beam. The regarded as background where propagate way like scalar curved spacetime, thus providing platform to study physics analog gravity. In this gravity model, more specific, rotating black hole background, we quasinormal modes (QNMs) of massive perturbations, natural extension recent work on massless QNMs...
The Radio Neutrino Observatory in Greenland (RNO-G) seeks to detect the Askaryan radio emission from energetic neutrinos (> 10 PeV) interacting ice sheet. RNO-G detector comprises an array of independent and autonomous radio-detector stations, each with a hybrid design composed deep borehole ($\sim$100m) surface antennas, which require low-power, robust, scalable low-noise radiofrequency (RF) amplifier signal-transport systems over $\sim$80-650MHz bandwidth. In this contribution, we will...
3.4 μm mid-infrared pulse train laser generates the characteristic spectral lines of absorption peaks CH<sub>4</sub>, NO<sub>2</sub> and other molecules. Its working mode can increase signal-to-noise ratio detection echo signal. It has broad application prospects in radar detection, environmental monitoring, analysis fields, which aroused great interest scientists. Compared with traditional intra-cavity control method, step <i>Q</i>-switching method...