A5102873651- Advanced Fiber Laser Technologies
- Advanced Fiber Optic Sensors
- Photonic Crystal and Fiber Optics
- Optical Network Technologies
- Chaos control and synchronization
- Nonlinear Photonic Systems
- Nonlinear Dynamics and Pattern Formation
- Photonic and Optical Devices
- Semiconductor Lasers and Optical Devices
- Nonlinear Waves and Solitons
- Laser-Matter Interactions and Applications
- Neural Networks and Reservoir Computing
- Non-Destructive Testing Techniques
- Solid State Laser Technologies
- Spectroscopy and Laser Applications
- Quantum Mechanics and Non-Hermitian Physics
- Welding Techniques and Residual Stresses
- Gyrotron and Vacuum Electronics Research
- Chaos-based Image/Signal Encryption
- Luminescence Properties of Advanced Materials
- Perovskite Materials and Applications
- Advanced Photonic Communication Systems
- Radar Systems and Signal Processing
- Photoacoustic and Ultrasonic Imaging
- stochastic dynamics and bifurcation
Taiyuan University of Technology
2014-2024
Army Logistics University
2024
Inner Mongolia Autonomous Region Hospital of Traditional Chinese Medicine
2022
Lomonosov Moscow State University
2018
The wavelength and interval tunable second-order bound solitons are generated in a nonlinear polarization rotation mode-locked fiber laser based on Lyot filter this paper. structure is composed of two controllers, in-line polarizers maintaining fiber. transmission curves have the characteristic periodic modulation, so it has spectral filtering effect. change controllers can cause shift curve variation modulation depth. be obtained due to curve. A with maximum tuning range 18.56 nm cavity. In...
A low Etendue (6.1 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> ) yellow-green solid-state light source with optical conversion efficiency up to 101.3 lumen/Watt is demonstrated by through high-power laser diode pumping of a static LuAG:Ce transparent ceramic plate. 443-nm blue array full-width-half-maximum (FWHM) <;1.5 nm and maximum output power 15.2 W used attain high spectral absorption efficiency. The from the collimated,...
We have proposed a novel optical sensor scheme based on chaotic correlation fiber loop ring down (CCFLRD). In contrast to the well-known FLRD spectroscopy, where pulsed laser is injected and time measured, CCFLRD uses drive measures autocorrelation coefficient of laser. The fundamental difference enables us avoid using long as required in FLRD, thus generates higher sensitivity. A strain has been developed validate concept. Theoretical experiment results demonstrate that method able enhance...
We propose and theoretically demonstrate an all-optical method for directly generating random numbers from pulse amplitude chaos produced by a mode-locked fiber ring laser. Under appropriate pump intensity, the laser can experience quasi-periodic route to chaos. Such consists of stream pulses with fixed repetition frequency but intensities. In this method, we do not require sampling procedure external triggered clocks quantize chaotic into number sequence via flip-flop. Moreover, our...
A diffuse optical tomography system with chaotic laser is proposed for the three-dimensional phantom. The high signal-to-noise ratio beneficial to improve spatial resolution of tomography. It essential drive as incident light into transmitted emitted from phantom detection and a part reference carry out cross-correlation analysis. high-density source-detector configuration in parallel plate structure designed detecting targets propagation studied theoretically experimentally based on...
We investigate the generation of random soliton-like beams based on Kuznetsov-Ma solitons in a nonlinear fractional Schrödinger equation (NLFSE). For Lévy index α = 1, split into two nondiffracting during propagation linear regime. According to different input positions solitons, diffraction-free can be divided three types: bright-dark, dark-bright and bright-bright beams. In regime, evolved due collapse. The number is related coefficient index. bigger coefficient, more generated. Moreover,...
The chaotic correlation fiber loop ring down system with loss compensation is initially developed. We use a laser to drive the cavity and measure autocorrelation coefficient time of laser. continuously injected into erbium-doped amplifier. amplified acts as signal for measurement can stabilize power in cavity. It different that only one pulse transmitted pulsed technology compensation. characterized terms baseline stability minimum detectable optical avoid crosstalk signals. 1.03 × 10 <sup...
A novel refractive index sensing using the tapered single mode fiber (TSMF) is proposed based on chaotic correlation loop ring down system (FLRDs). laser used to drive cavity. The performance of TSMF FLRDs was demonstrated by measuring time peaks coefficient at different index. demonstrates a good stability and repeatability. influence change in length also investigated. results show that sensitivity increases with decrease has little effect detection limit (DL) system. DL 10 <sup...
We demonstrate an all-fiber broadband supercontinuum (SC) source with high efficiency in a step-index nonlinear silica fiber, which was pumped by 1557 nm subpicosecond-pulse laser the normal dispersion region. The broad SC spectrum covers spectral range from 840 to 2390 nm, and 10 dB bandwidth 1120 2245 of one octave, assuming peaks near 1550 were filtered. system is constructed components, can be fusion-spliced together directly low loss, less than 0.1 dB. Thus has energy transfer pump...
We propose a novel quasi-distributed sensing system using wavelength-tunable chaotic fiber laser as well identical weak Bragg gratings (FBGs). FBG location is determined by measuring the time delay between reference and reflected light. The wavelength variety of certain FBG, owing to influence external parameters, scanned tunable laser. network theoretically analyzed. Simulation results reveal hundreds multiplexing capabilities spatial resolution up 1.3 cm.
Online monitoring of the polishing process a D-shaped optical fiber sensor is performed in this paper by means chaotic correlation loop ring down (CCFLRD) system. The time autocorrelation coefficient decreases with increase loss caused different mesh sizes. A comparison sensitivity and resolution CCFLRD system losses length cavity are carried out. very short proposed demonstrated using numbers to high 31.871ns-1RIU-1 10-4RIU for refractive index sensing range 1.3347-1.3721 correspond...
The evolution of dark–dark soliton pairs is numerically investigated in a dispersion managed erbium-doped fiber ring laser. It found that the fluctuation background, sideband intensity optical spectrum, distance and width are related to orientation polarization controllers pump power caused by modulation instability balance between gain loss