期刊
OPTICA
卷 5, 期 3, 页码 279-282出版社
OPTICAL SOC AMER
DOI: 10.1364/OPTICA.5.000279
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资金
- H Marie Sklodowska-Curie Actions (MSCA) [748519]
- National Physical Laboratory Strategic Research
- National Natural Science Foundation of China (NSFC) [61435002, 61675015]
- European Research Council (ERC) [756966]
- Engineering and Physical Sciences Research Council (EPSRC)
- Marie Curie Actions (MSCA) [748519] Funding Source: Marie Curie Actions (MSCA)
- European Research Council (ERC) [756966] Funding Source: European Research Council (ERC)
Nonreciprocal light propagation is important in many applications, ranging from optical telecommunications to integrated photonics. A simple way to achieve optical nonreciprocity is to use the nonlinear interaction between counterpropagating light in a Kerr medium. Within a ring resonator, this leads to spontaneous symmetry breaking, resulting in light of a given frequency circulating in one direction, but not in both directions simultaneously. In this work, we demonstrate that this effect can be used to realize optical isolators and circulators based on a single ultra-high-Q microresonator. We obtain isolation of > 24 dB and develop a theoretical model for the power scaling of the attainable nonreciprocity. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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