Results 21 to 30 of about 7,813 (265)

Mulitiscale spatiotemporal structures in mode-locked fiber lasers [PDF]

Laser Physics Letters, 2020
Abstract Using an Er-doped fiber laser as a test bed, here we for the first time experimentally demonstrate the simultaneous effect of the fast scale (round-trip time) and slow scale (thousands round-trip time) instabilities on the emergence of breathers similar to the Akhmediev breathers, Peregrine solitons, and partially mode-locked
Hani J. Kbashi, Marina Zajnulina, A. Martinez, Sergey Sergeyev   +3 more
openalex   +2 more sources

Spatiotemporal wavevector dynamics of transverse mode-locked beams [PDF]

2025 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)
The phase-locking of transverse higher-order resonator modes results in a beam with rapidly oscillating spatial intensity profile. To complete the description of such transverse mode-locked (TML) beams, their spatiotemporal phase dynamics are explored in this work.
Jan Wichmann, Michael Zwilich, Carsten Fallnich   +2 more
  +6 more sources

Investigation of spatiotemporal mode-locked fiber lasers with hybrid dispersion

Optics Express
In this work, by controlling the magnitude of the fourth-order dispersion (FOD) values introduced in the multimode fiber mode-locked laser system, the influence of hybrid dispersion (mainly second-order and FOD) on the spatiotemporal mode-locked fiber laser was studied.
Huaiwei Zhang, Jiying Peng, Wenyu Zhang, Yulong Li, Xinyang Su, Fengping Yan, Yi Zheng   +6 more
openalex   +3 more sources

Mode locking and spatiotemporal chaos in periodically driven Gunn diodes [PDF]

Physical Review B, 1990
Numerical simulation is applied to study the highly nonlinear-dynamic phenomena that can arise in Gunn diodes by interaction between the internally generated domain mode and an external microwave signal. By adjusting the time of domain formation and the speed of propagation, the internal oscillation entrains with the external signal.
Erik Mosekilde, Rasmus Feldberg, Carsten Knudsen, Morten Hindsholm   +3 more
openalex   +4 more sources

Spatiotemporal Mode-Locking in Multimode Fiber Lasers [PDF]

Advanced Photonics 2018 (BGPP, IPR, NP, NOMA, Sensors, Networks, SPPCom, SOF), 2018
Optical fibers designed to support multiple transverse modes offer opportunities to study wave propagation in a setting that is intermediate between single-mode fiber and free-space propagation. To date, virtually all mode-locked lasers are based on resonators that support a single transverse spatial mode.
Frank W Wise
exaly   +2 more sources

Mode-Controllable and High-Pulse-Energy Spatiotemporally Mode-Locked Fiber Laser

IEEE Photonics Journal
Spatiotemporally mode-locked (STML) fiber lasers have been a remarkable platform for exploring multidimensional nonlinear optical dynamics and developing novel photonic devices.
Wenhui Hao, Zhihui Yang, Mingwei Mao, Yulong Tang   +3 more
doaj   +2 more sources

Spatiotemporal dynamics of a passively mode-locked Nd:GdVO₄laser

Optics Express, 2007
By examining beam patterns, temporal pulse forms, and radio-frequency spectra as functions of resonator configuration and pump power, we found that a passively mode-locked Nd:GdVO4 laser exhibited four main regimes of operation that were single-transverse-mode Q-switched mode locking (QSML), single-transverse-mode continuous-wave mode locking (CWML ...
Hsiao-Hua Wu, Chi-Rong Huang, Jian-Tzung Huang   +2 more
openalex   +3 more sources

Bistability in spatiotemporal mode-locking with dynamic multimode gain [PDF]

Three-dimensional (3D) dissipative soliton existed in spatiotemporal mode-locked (STML) multimode fiber laser has been demonstrated to be a promising formalism for generating high-energy femtosecond pulses, which unfortunately exhibit diverse spatiotemporal dynamics that have not been fully understood.
Zhijin Xiong, Yuankai Guo, Wei Lin, Hao Xiu, Yuncong Ma, Xuewen Chen, Zhaoheng Liang, Ling Lin, Tao Liu, Xiaoming Wei, Zhongmin Yang   +10 more
openalex   +3 more sources

Dynamics of multimode creeping solitons and soliton explosions in a spatiotemporal mode-locked laser

Optics Express
The study of high-dimensional solitons will bring great interest and new opportunities for understanding three-dimensional nonlinear physical phenomena and the design of complex nonlinear systems. The development of spatiotemporal mode-locked (STML) lasers has enabled the exploration of high-dimensional soliton dynamics.
Huaiwei Zhang, Jiying Peng, Xiaosheng Xiao, Wenyu Zhang, Guoyu Xu, Xinyang Su, Fengping Yan, Yi Zheng, Jianquan Yao   +8 more
openalex   +3 more sources

An Empirical Study on the Agglomeration Characteristics of China’s Construction Industry Based on Spatial Autocorrelation and Spatiotemporal Transition

Complexity, 2021
The spatiotemporal agglomeration of industries is the most prominent geographical feature of economic activities. Based on the analysis of the spatiotemporal distribution of China’s construction industry agglomeration, this paper analyzes the ...
Likun Zhao, Junsen Tian, Yanqi Liu, Rui Liu   +3 more
doaj   +1 more source