材料科学
消光比
折射率
时域有限差分法
光开关
光学
光电子学
光子学
超短脉冲
激光器
波长
物理
作者
Xuanxuan Xie,Furong Liu,Lulu Zhang,Yangbo Lian,Yu Liu
出处
期刊:Journal of physics
[IOP Publishing]
日期:2021-05-01
卷期号:1907 (1): 012051-012051
标识
DOI:10.1088/1742-6596/1907/1/012051
摘要
Abstract Phase change materials are widely used in photonic devices due to their extremely large optical properties. Phase change optical switches use the difference in refractive index between amorphous and crystalline states to achieve “on” and “off”. In this paper, we design a Si-Sc 0.2 Sb 2 Te 3 (SST) hybrid waveguide 1x1 optical switch. The finite element method was used to optimize the structural parameters of the device and the modal distribution of TE polarization was calculated. The transmission performance of the device is simulated by the FDTD method. In this case, a very compact, 2 µm long SST shows a large extinction ratio of more than 12 dB and over 100 nm bandwidth operation.
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