Gang Xu

ORCID: 0000-0002-3721-9597
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About
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Research Areas
  • Advanced Fiber Laser Technologies
  • Nonlinear Photonic Systems
  • Photonic and Optical Devices
  • Nonlinear Waves and Solitons
  • Laser-Matter Interactions and Applications
  • Photonic Crystal and Fiber Optics
  • Optical Network Technologies
  • Advanced Fiber Optic Sensors
  • Navier-Stokes equation solutions
  • Nonlinear Dynamics and Pattern Formation
  • Orbital Angular Momentum in Optics
  • Advanced Mathematical Physics Problems
  • Mechanical and Optical Resonators
  • Computational Fluid Dynamics and Aerodynamics
  • Photonic Crystals and Applications
  • Advanced Vision and Imaging
  • Geometric Analysis and Curvature Flows
  • Surface Roughness and Optical Measurements
  • Quantum optics and atomic interactions
  • Color Science and Applications
  • Advanced Optical Imaging Technologies
  • Quantum Information and Cryptography
  • Liquid Crystal Research Advancements
  • Cold Atom Physics and Bose-Einstein Condensates
  • Advanced Chemical Physics Studies

Huazhong University of Science and Technology
2022-2025

Jiangsu Academy of Agricultural Sciences
2025

Ministry of Agriculture and Rural Affairs
2025

North China University of Technology
2022-2025

University of Auckland
2020-2024

Laboratoire Interdisciplinaire Carnot de Bourgogne
2013-2024

East China Normal University
2021-2024

Wuhan National Laboratory for Optoelectronics
2022-2024

Université de Bourgogne
2013-2024

Hangzhou Dianzi University
2023-2024

Self-assembly of particle-like dissipative solitons, in the presence mutual interactions, emphasizes vibrant concept soliton molecules varieties laser resonators. Controllable manipulation molecular patterns, held by degrees freedom internal motions, still remains challenging to explore more efficient and subtle tailoring approaches for increasing demands. Here, we report a new phase-tailored quaternary encoding format based on controllable assembly molecules. Artificial energy exchange...

10.1038/s41377-023-01170-x article EN cc-by Light Science & Applications 2023-05-17

We present both a theoretical description and experimental observation of the nonlinear mutual interactions between pair copropagative breathers in framework focusing one-dimensional Schrödinger equation. As general case, we show that resulting bound state exhibits moleculelike behavior with quasiperiodic oscillatory dynamics (i.e., internal coherent pulsations), while for commensurate conditions molecule oscillations become exactly periodic. Our model is confirmed by an shaped breather...

10.1103/physrevlett.122.084101 article EN Physical Review Letters 2019-02-27

Abstract We investigate experimentally and theoretically a system ruled by an intricate interplay between topology, nonlinearity, spontaneous symmetry breaking. The experiment is based on two-mode coherently-driven optical resonator where photons interact through the Kerr nonlinearity. In presence of phase defect, modal structure acquires synthetic Möbius topology enabling realization breaking in inherently bias-free conditions without fine tuning parameters. Rigorous statistical tests...

10.1038/s41467-023-44640-x article EN cc-by Nature Communications 2024-02-15

Temporal cavity solitons are optical pulses that can persist in passive resonators, such as microresonators and fiber-based resonators. They preserve their shape energy during the propagation. In addition, other typical nonlinear states including Turing rolls, chaotic state, breathers also emerge Kerr resonator. Normally, occurrence of these is not simultaneous due to distinct parameter regimes. However, coexistence has been observed scenarios where neighboring resonances corresponding both...

10.1103/physreva.109.013503 article EN Physical review. A/Physical review, A 2024-01-04

We investigate the temporal photonic analogue of dam-break phenomenon for shallow water by exploiting a fiber optics setup. clearly observe decay steplike input (photonic dam) into pair oppositely propagating rarefaction wave and dispersive shock wave. Our results show evidence critical transition self-cavitating state. The detailed observation cavitating state dynamics allows fully quantitative test Whitham modulation theory applied to universal defocusing nonlinear Schrödinger...

10.1103/physrevlett.118.254101 article EN Physical Review Letters 2017-06-20

Understanding turbulent flows arising from random dispersive waves that interact strongly through nonlinearities is a challenging issue in physics. Here we report the observation of characteristic transition: strengthening nonlocal character nonlinear response drives system fully regime, featuring sea coherent small-scale shock (shocklets) towards unexpected emergence giant collective incoherent wave. The front such global carries most stochastic fluctuations and responsible for peculiar...

10.1038/ncomms9131 article EN cc-by Nature Communications 2015-09-08

We present a detailed study of the phase properties rational breather waves observed in hydrodynamic and optical domains, namely Peregrine soliton related second-order solution. At point maximum compression, our experimental results recorded wave tank or using an fiber platform reveal characteristic shift that is multiple $\pi$ between central part pulse continuous background, agreement with analytical numerical predictions. also stress existence large longitudinal across compression.

10.1103/physreve.99.012207 article EN Physical review. E 2019-01-09

We investigate theoretically and experimentally the instabilities of symmetry-broken, vectorial, bright cavity solitons (CSs) two-mode nonlinear passive Kerr resonators. Through comprehensive theoretical analyses coupled Lugiato-Lefever equations, we identify two different breathing regimes where components vectorial CSs breathe respectively in-phase out-of-phase. Moreover, find that deep out-of-phase can lead to intermittent self-switching components, spontaneously transforming a soliton...

10.1364/ol.449679 article EN Optics Letters 2022-02-15

We experimentally report the observation of dispersive shock waves from a short pulse superimposed onto small continuous wave background in optical fibers. show that allows us to strongly enhance extension and contrast oscillatory train inherent shock. More than seven periods oscillations with high are observed confirmed numerical simulations. The dynamics process simply explained spectro-temporal representations.

10.1364/ol.41.002656 article EN Optics Letters 2016-05-31

We predict theoretically and numerically the existence of incoherent dispersive shock waves. They manifest themselves as an unstable singular behavior spectrum waves that evolve in a noninstantaneous nonlinear environment. This phenomenon ``spectral wave breaking'' develops weakly regime random wave. elaborate general theoretical formulation these objects on basis statistical approach: family integro-differential kinetic equations is derived, which provides detailed deterministic description...

10.1103/physrevlett.111.113902 article EN Physical Review Letters 2013-09-13

We experimentally demonstrate an all-optical random number generator based on spontaneous symmetry breaking in a coherently-driven Kerr resonator. Random bit sequences are generated by repeatedly tuning control parameter across symmetry-breaking bifurcation that enacts selection between two possible steady-states of the system. Experiments performed fibre ring resonator, where symmetry-broken associated with orthogonal polarization modes. Detrimental biases due to system asymmetries...

10.1364/ol.493731 article EN Optics Letters 2023-06-06

Abstract Shanghai HIgh repetition rate XFEL aNd Extreme light facility (SHINE) is a free electron laser with high pulse of up to 1 MHz. STARLIGHT (SemiconducTor Array detectoR Large dynamIc ranGe and cHarge inTegrating readout) pixel array detector frame (≥ 10 kHz) large dynamic range (up 4 photons 12.4 keV), which being developed for SHINE. The readout ASIC utilized by in the front-end module HYLITE (High dYmamic Laser Imaging deTEctor). HYLITE200F 200 μm × size 64 pixels first full-scale...

10.1088/1748-0221/20/02/c02019 article EN Journal of Instrumentation 2025-02-01

To address the issue of high‐temperature corrosion coal‐fired boiler water‐cooled walls, an Al–Si–Cr coating with rare earth element is developed using heat‐curing ceramic technology in this study. The resistance both and Ni–Cr coatings investigated under laboratory actual conditions X‐ray diffraction, scanning electron microscopy, energy‐dispersive spectroscopy. Results indicate significant coatings’ mass increase over time conditions, gain following a power function time. dense structure...

10.1002/adem.202402825 article EN Advanced Engineering Materials 2025-02-21

Learned digital back-propagation (LDBP) is emerging as a promising solution to mitigate the nonlinear fiber distortions that limit capacity of optical communications. However, computational complexity LDBP, which affected by dispersion compensation, will increase significantly communications move toward higher baud rates and longer transmission distances. Herein, we propose what believe be novel method called exponential pruning LDBP (EP-LDBP), achieved redundant taps with adjustable...

10.1364/ol.555981 article EN Optics Letters 2025-02-24

10.1103/physreva.111.042627 article EN Physical review. A/Physical review, A 2025-04-30
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