Compact Magnetless Optical Isolator using Two Coupled Microcavities with Time-modulation

被引：0
|
作者：
Mock, Adam [1 ]
机构：
[1] Cent Michigan Univ, Sch Engn & Technol, Mt Pleasant, MI 48859 USA
来源：
2021 INTERNATIONAL APPLIED COMPUTATIONAL ELECTROMAGNETICS SOCIETY SYMPOSIUM (ACES) | 2021年
关键词：
Cavities; cavity resonators; finite-difference time-domain (FDTD); isolators; microwave optical design; optical guided waves and devices; time-varying circuits;
D O I：
10.1109/ACES53325.2021.00085
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
It is shown how time-modulating the refractive index of two coupled microcavities with a 90 degree phase shift between them leads to non-reciprocal wave propagation. The cavities are implemented as defects in a one-dimensional photonic crystal. The ratio of forward to backward power transmission can be as high as 25 dB with experimentally realizable modulation frequencies and amplitudes. Further, it is demonstrated how a simple passive filter can remove modulation sidebands.
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页数：4
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