期刊
NATURE PHOTONICS
卷 6, 期 7, 页码 463-468出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/NPHOTON.2012.126
关键词
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资金
- National Science Foundation including CIAN ERC
- Defense Advanced Research Project Agency (DARPA/DSO) Physical Intelligence programme
- Deutsche Forschungsgemeinschaft [DFG-ZUK 45/1]
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [0925638] Funding Source: National Science Foundation
Stochastically driven nonlinear processes are responsible for spontaneous pattern formation and instabilities in numerous natural and artificial systems, including well-known examples such as sand ripples, cloud formations, water waves, animal pigmentation and heart rhythms(1-3). Technologically, a type of such self-amplification drives free-electron lasers(4,5) and optical supercontinuum sources(6,7) whose radiation qualities, however, suffer from the stochastic origins(8-11). Through time-resolved observations, we identify intrinsic properties of these fluctuations that are hidden in ensemble measurements. We acquire single-shot spectra of modulation instability produced by laser pulses in glass fibre at megahertz real-time capture rates. The temporally confined nature of the gain physically limits the number of amplified modes, which form an anti-bunched arrangement as identified from a statistical analysis of the data. These dynamics provide an example of pattern competition and interaction in confined nonlinear systems.
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