Results 11 to 20 of about 7,519 (215)

Temporal and spatiotemporal soliton molecules in ultrafast fibre lasers [PDF]

Nanophotonics
Ultrafast fibre lasers, characterized by ultrashort pulse duration and broad spectral bandwidth, have drawn significant attention due to their vast potential across a wide range of applications, from fundamental scientific to industrial processing and ...
Mao Ding, Yuan Zichuan, Dai Ke, Chen Yue, Ma Huihui, Ling Qiang, Zheng Jiancheng, Zhang Yusheng, Chen Daru, Cui Yudong, Sun Zhipei, Malomed Boris A.   +11 more
doaj   +2 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

3 W average-power high-order mode pulse in dissipative soliton resonance mode-locked fiber laser

Nanophotonics, 2021
Recently high-order modes (HOMs) lasers have been extensively investigated due to their potential applications in mode-division multiplexing. In this paper, we present two schemes of generating HOMs from the mode-locked fiber lasers (MLFLs) in the ...
Wang Longtao, Xu Jiangtao, Lu Jiafeng, Teng Linping, Luo Zhengqian, Pang Fufei, Zeng Xianglong   +6 more
doaj   +1 more source

Tunable spatiotemporal mode-locked fiber laser at 1.55 μm

Optics Express, 2021
We report the spatiotemporal mode-locked multimode fiber laser operating at 1.55 µm based on semiconductor saturable absorber mirrors with the mode-locking threshold as low as 104 mW. Benefiting from the multimode interference filtering effect introduced in the laser cavity not only the central wavelength can be continuously tuned from 1557 nm to 1567 ...
Ze-Long Ma, Jin-Gan Long, Wei Lin, Wei-Yi Hong, Hu Cui, Zhi-Chao Luo, Wen-Cheng Xu, Mikhail E. Likhachev, Svetlana S. Aleshkina, Valery M. Mashinsky, Mikhail V. Yashkov, Ai-Ping Luo   +11 more
openaire   +2 more sources

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

Laser Physics Letters, 2020
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 chaotic solitons.
Kbashi, Hani J, Zajnulina, Marina, Martinez, Amos G, Sergeyev, Sergey V   +3 more
openaire   +1 more source

Irrational mode locking in quasiperiodic systems [PDF]

, 2007
A model for ac-driven systems, based on the Tang-Wiesenfeld-Bak-Coppersmith-Littlewood automaton for an elastic medium, exhibits mode-locked steps with frequencies that are irrational multiples of the drive frequency, when the pinning is spatially ...
A. Alan Middleton, Creighton K. Thomas, D. P. DiVincenzo   +2 more
core   +3 more sources

All-step-index-fiber spatiotemporally mode-locked laser

Optica, 2023
Spatiotemporal mode-locking (STML) in multi-mode fiber (MMF) lasers has extended the concept of temporal dissipative solitons into spatiotemporal dissipative solitons. To date, all reported STML in MMF lasers has used graded-index (GRIN) MMFs either solely or hybridly with other fibers.
Chenxin Gao, Bo Cao, Yihang Ding, Xiaosheng Xiao, Dali Yang, Hongyang Fei, Changxi Yang, Chengying Bao   +7 more
openaire   +1 more source

Spatial beam self-cleaning and supercontinuum generation with Yb-doped multimode graded-index fiber taper based on accelerating self-imaging and dissipative landscape [PDF]

, 2019
We experimentally demonstrate spatial beam self-cleaning and supercontinuum generation in a tapered Ytterbium-doped multimode optical fiber with parabolic core refractive index profile when 1064 nm pulsed beams propagate from wider (122 µm) into smaller (
Couderc, V., Egorova, O. N., Fabert, M., Krupa, K., Leproux, P., Levchenko, A. E., Lipatov, D. S., Mansuryan, T., Millot, G., Modotto, D., Niang, A., Semjonov, S. L., Tonello, A., Wabnitz, S.   +13 more
core   +1 more source

Spatiotemporal transition of China’s industrial intelligence and the driving mechanism [PDF]

Ziyuan Kexue
[Objective] The objective of this study was to clarify the characteristics of the spatiotemporal transition of industrial intelligence in China and its driving mechanism, and provided a reference basis for promoting the coordinated regional development ...
LI Liping, DENG Zongbing, XIAO Qinlin
doaj   +1 more source

Delayed feedback control of self-mobile cavity solitons in a wide-aperture laser with a saturable absorber [PDF]

, 2017
We investigate the spatiotemporal dynamics of cavity solitons in a broad area vertical-cavity surface-emitting laser with saturable absorption subjected to time-delayed optical feedback.
A. G. Vladimirov, A. Pimenov, Akhmediev N., F. Tabbert, Kraft A., Liehr A. W., S. V. Gurevich, Schöll E., T. Schemmelmann   +8 more
core   +3 more sources