Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 279-282 |
| Number of pages | 4 |
| Journal | Optica |
| Volume | 5 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 9 Mar 2018 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
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Del Bino, L., Silver, J. M., Woodley, M. T. M., Stebbings, S. L., Zhao, X., & Del’Haye, P. (2018). Microresonator isolators and circulators based on the intrinsic nonreciprocity of the Kerr effect. Optica, 5(3), 279-282. https://doi.org/10.1364/OPTICA.5.000279