Real-time measurements of spontaneous breathers and rogue wave events in optical fibre modulation instability.
Real-time measurements of spontaneous breathers and rogue wave events in optical fibre modulation instability.
复制标题
光纤调制不稳定性中自发呼吸和异常波事件的实时测量。
DOI：
10.1038/ncomms13675
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发表时间：
2016-12-19
影响因子：
16.6
通讯作者：
中科院分区：
文献类型：
--
作者：
调制不稳定性是非线性科学的一个基本过程，它会导致物理系统恒幅解的不稳定分解。人们对研究立方非线性薛定谔方程的调制不稳定性特别感兴趣，该方程是一系列非线性系统的通用模型，包括超流体、光纤、等离子体和玻色-爱因斯坦凝聚体。在理解满足流氓波统计标准的高幅度事件的出现的背景下，调制不稳定性也是一个重要的研究领域。在这里，我们利用超快光学计量学的进展，在光纤系统中实时测量连续波场的不稳定分裂，同时表征出现的调制不稳定呼吸脉冲及其相关统计。我们的结果可以在实验、模型和理论之间进行定量比较，并有望为物理学中不稳定性动力学的研究开辟新的视角。其他恒定强度波上的低幅度噪声可以指数增长，并导致非线性动力学行为。在这里，作者提出了一种由这种调制不稳定性引起的现象的时域测量：光纤中出现了高度局域的呼吸。
Modulation instability is a fundamental process of nonlinear science, leading to the unstable breakup of a constant amplitude solution of a physical system. There has been particular interest in studying modulation instability in the cubic nonlinear Schrödinger equation, a generic model for a host of nonlinear systems including superfluids, fibre optics, plasmas and Bose–Einstein condensates. Modulation instability is also a significant area of study in the context of understanding the emergence of high amplitude events that satisfy rogue wave statistical criteria. Here, exploiting advances in ultrafast optical metrology, we perform real-time measurements in an optical fibre system of the unstable breakup of a continuous wave field, simultaneously characterizing emergent modulation instability breather pulses and their associated statistics. Our results allow quantitative comparison between experiment, modelling and theory, and are expected to open new perspectives on studies of instability dynamics in physics. Low amplitude noise on an otherwise constant-intensity wave can grow exponentially and induce nonlinear dynamical behaviour. Here, the authors present time-domain measurements of a phenomenon arising from such modulation instability: the emergence of highly localised breathers in an optical fibre.
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影响因子：
19.6
作者：
Kibler, B.;Fatome, J.;Dudley, J. M.
通讯作者：
Dudley, J. M.
影响因子：
3.7
作者：
BENJAMIN, TB;FEIR, JE
通讯作者：
FEIR, JE
影响因子：
2.9
作者：
COATES, AB;WEISS, CO;OPPO, GL
通讯作者：
OPPO, GL
影响因子：
4
作者：
Huyet, G;Tredicce, JR
通讯作者：
Tredicce, JR
影响因子：
8.6
作者：
Bonatto, Cristian;Feyereisen, Michael;Tredicce, Jorge R.
通讯作者：
Tredicce, Jorge R.