Spatio-temporal breather dynamics in microcomb soliton crystals

IF 20.6 Q1 OPTICS
Futai Hu, Abhinav Kumar Vinod, Wenting Wang, Hsiao-Hsuan Chin, James F. McMillan, Ziyu Zhan, Yuan Meng, Mali Gong, Chee Wei Wong
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Abstract

Solitons, the distinct balance between nonlinearity and dispersion, provide a route toward ultrafast electromagnetic pulse shaping, high-harmonic generation, real-time image processing, and RF photonic communications. Here we uniquely explore and observe the spatio-temporal breather dynamics of optical soliton crystals in frequency microcombs, examining spatial breathers, chaos transitions, and dynamical deterministic switching – in nonlinear measurements and theory. To understand the breather solitons, we describe their dynamical routes and two example transitional maps of the ensemble spatial breathers, with and without chaos initiation. We elucidate the physical mechanisms of the breather dynamics in the soliton crystal microcombs, in the interaction plane limit cycles and in the domain-wall understanding with parity symmetry breaking from third-order dispersion. We present maps of the accessible nonlinear regions, the breather frequency dependences on third-order dispersion and avoided-mode crossing strengths, and the transition between the collective breather spatio-temporal states. Our range of measurements matches well with our first-principles theory and nonlinear modeling. To image these soliton ensembles and their breathers, we further constructed panoramic temporal imaging for simultaneous fast- and slow-axis two-dimensional mapping of the breathers. In the phase-differential sampling, we present two-dimensional evolution maps of soliton crystal breathers, including with defects, in both stable breathers and breathers with drift. Our fundamental studies contribute to the understanding of nonlinear dynamics in soliton crystal complexes, their spatio-temporal dependences, and their stability-existence zones.

Abstract Image

微梳状孤子晶体中的时空呼吸动力学
孤子是非线性和色散之间的独特平衡,为超快电磁脉冲整形、高频产生、实时图像处理和射频光子通信提供了一条途径。在这里,我们独特地探索和观察了频率微蜂窝中光学孤子晶体的时空呼吸动力学,研究了非线性测量和理论中的空间呼吸、混沌转换和动态确定性开关。为了理解喘息孤子,我们描述了它们的动力学路径,以及有混沌起始和无混沌起始的集合空间喘息的两个示例过渡图。我们阐明了呼吸动力学在孤子晶体微梳理、相互作用平面极限循环和从三阶色散打破奇偶对称性的域壁理解中的物理机制。我们展示了可进入的非线性区域图、呼吸频率与三阶色散和避免模式交叉强度的相关性,以及集体呼吸时空状态之间的转换。我们的测量范围与第一原理理论和非线性建模非常吻合。为了对这些孤子集合及其呼吸器进行成像,我们进一步构建了全景时空成像,以同时对呼吸器进行快轴和慢轴二维映射。在相位差采样中,我们展示了孤子晶体呼吸器的二维演化图,包括有缺陷的稳定呼吸器和有漂移的呼吸器。我们的基础研究有助于理解孤子晶体复合体的非线性动力学、其时空依赖性及其稳定存在区。
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来源期刊
Light-Science & Applications
Light-Science & Applications 数理科学, 物理学I, 光学, 凝聚态物性 II :电子结构、电学、磁学和光学性质, 无机非金属材料, 无机非金属类光电信息与功能材料, 工程与材料, 信息科学, 光学和光电子学, 光学和光电子材料, 非线性光学与量子光学
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803
审稿时长
2.1 months
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