Advanced Photonics, 2019, 1 (4): 046002, Published Online: Aug. 23, 2019  

Synchronization and temporal nonreciprocity of optical microresonators via spontaneous symmetry breaking Download: 687次

Author Affiliations
1 Peking University, State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, School of Physics, Beijing, China
2 Nano-optoelectronics Frontier Center of the Ministry of Education, Collaborative Innovation Center of Quantum Matter, Beijing, China
3 Shanxi University, Collaborative Innovation Center of Extreme Optics, Taiyuan, China
4 Beijing Academy of Quantum Information Sciences, Beijing, China
5 National University of Singapore, Department of Electrical and Computer Engineering, Singapore, Singapore
6 Shanxi University, Institute of Laser Spectroscopy, State Key Laboratory of Quantum Optics and Quantum Optics Devices, Taiyuan, China
Abstract
Synchronization is of importance in both fundamental and applied physics, but its demonstration at the micro/nanoscale is mainly limited to low-frequency oscillations such as mechanical resonators. We report the synchronization of two coupled optical microresonators, in which the high-frequency resonances in the optical domain are aligned with reduced noise. It is found that two types of synchronization regimes emerge with either the first- or second-order transition, both presenting a process of spontaneous symmetry breaking. In the second-order regime, the synchronization happens with an invariant topological character number and a larger detuning than that of the first-order case. Furthermore, an unconventional hysteresis behavior is revealed for a time-dependent coupling strength, breaking the static limitation and the temporal reciprocity. The synchronization of optical microresonators offers great potential in reconfigurable simulations of many-body physics and scalable photonic devices on a chip.

Da Xu, Zi-Zhao Han, Yu-Kun Lu, Qihuang Gong, Cheng-Wei Qiu, Gang Chen, Yun-Feng Xiao. Synchronization and temporal nonreciprocity of optical microresonators via spontaneous symmetry breaking[J]. Advanced Photonics, 2019, 1(4): 046002.

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