Vermeulen D, De Koninck Y, Li Y, Lambert E, Bogaerts W, Baets R, Roelkens G
Photonics Research Group, Department of Information Technology, Ghent University - imec, B-9000 Ghent, Belgium.
Opt Express. 2012 Sep 24;20(20):22278-83. doi: 10.1364/OE.20.022278.
We propose a novel grating coupler design which is inherently reflectionless by focusing the reflected light away from the entrance waveguide. The design rules for this reflectionless grating coupler are explained and the grating coupler design is investigated by means of 3D FDTD simulations for the case of a Silicon-on-Insulator based platform.
我们提出了一种新颖的光栅耦合器设计，通过将反射光聚焦到远离入射波导的方向，该设计本质上是无反射的。阐述了这种无反射光栅耦合器的设计规则，并针对基于绝缘体上硅平台的情况，通过三维有限时域差分（3D FDTD）模拟对光栅耦合器设计进行了研究。
