High efficiency germanium-assisted grating coupler.
作者信息
Yang Shuyu, Zhang Yi, Baehr-Jones Tom, Hochberg Michael
出版信息
Opt Express. 2014 Dec 15;22(25):30607-12. doi: 10.1364/OE.22.030607.
PMID:25607008
Abstract
We propose a fiber to submicron silicon waveguide vertical coupler utilizing germanium-on-silicon gratings. The germanium is epitaxially grown on silicon in the same step for building photodetectors. Coupling efficiency based on FDTD simulation is 76% at 1.55 µm and the optical 1dB bandwidth is 40 nm.
摘要
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