2020/05/31 by Naotomo Takemura, Masato Takiguchi, Masaya Notomi · 10 citations
Computer Science · Engineering · Physics and Astronomy · #Computer science #Limit (mathematics) #Limit cycle #Nanophotonics #Neural Networks and Reservoir Computing #Nonlinear Dynamics and Pattern Formation #Nonlinear system #Optics #Optoelectronics #Photonic and Optical Devices #Photonic crystal #Photonics #Physics #Quantum mechanics #Resonator #Silicon #Silicon photonics #Synchronization (alternating current) #Telecommunications #cond-mat.mes-hall #nlin.AO #physics.optics
paper · pdf · open access · doi:10.1364/oe.399545
published in Optics Express 28(19), 27657 (Optica Publishing Group)
openalex created_date 2020/05/29 · openalex publication_date 2020/08/24 · arxiv created 2020/09/08 · arxiv updated 2020/09/09 · openalex updated_date 2026/08/05
A driven high-Q Si microcavity is known to exhibit limit cycle oscillation originating from carrier-induced and thermo-optic nonlinearities. We propose a novel nanophotonic device to realize synchronized optical limit cycle oscillations with coupled silicon (Si) photonic crystal (PhC) microcavities. Here, coupled limit cycle oscillators are realized by using coherently coupled Si PhC microcavities. By simulating coupled-mode equations, we theoretically demonstrate mutual synchronization (entrainment) of two limit cycles induced by coherent coupling. Furthermore, we interpret the numerically simulated synchronization in the framework of phase description. Since our proposed design is perfectly compatible with current silicon photonics fabrication processes, the synchronization of optical limit cycle oscillations will be implemented in future silicon photonic circuits.