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On-chip multi-timescale spatiotemporal optical synchronization

delete2025-09-12
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OA
AI
L
Lida Xu
M
Mahmoud Jalali Mehrabad *
C
Christopher J. Flower
G
Grégory Moille
A
Alessandro Restelli
D
D. G. Suárez-Forero
Y
Yanne K. Chembo
S
Sunil Mittal
K
Kartik Srinivasan
M
Mohammad Hafezi *
DOI:10.1126/sciadv.adw7696delete
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摘要

摘要

En 中文
锁模是非线性光学的基石,推动了计量学、光谱学和通信领域的进步。然而,在非谐波、多时间尺度领域,它仍处于未探索状态。在此,我们利用拓扑光子学实现了片上多时间尺度同步。我们设计了一种由261个耦合氮化硅环形谐振器组成的二维晶格,该晶格支持具有快速(≈1太赫兹)单环和慢速(≈3吉赫兹)拓扑超环时间尺度的嵌套锁模态。我们观察到多时间尺度锁模的明确特征,包括泵浦噪声在两个方位模式族中的二次分布,与理论一致。这些发现得到了接近变换极限的重复拍频和慢时间尺度上周期性时间模式的出现的支持。边缘受限态表现出与体态和单环模式不同的动力学特性,从而实现了清晰识别。我们的结果表明,拓扑频率梳是一种稳健的平台,可用于独立可调的、晶格尺度的同步,为探索集成光子学中非线性与拓扑的相互作用开辟了新方向。

期刊

Science Advances 封面图
Science Advances
IF:
12.5
论文数:
2.1W
被引数:
18.1W

机构

N
Northeastern University
学者数:
2.5W
论文数: 1.6W
被引数: 3.0W
C
College Park
学者数:
818
论文数: 416
被引数: 5
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