Reflectionless grating coupling for silicon-on-insulator integrated circuits

We propose a novel grating coupler design which is inherently reflectionless by focusing the reflected light away from the entrance waveguide. The grating coupler design is investigated by means of 3D FDTD simulations

Silicon grating structures for optical fiber interfacing and III-V/silicon opto-electronic components

In this paper, we review our work on efficient, broadband and polarization independent interfaces between a silicon-on-insulator photonic IC and a single-mode optical fiber based on grating structures. The high alignment tolerance and the fact that the optical fiber interface is out-of-plane provide opportunities for easy packaging and wafer-scale testing of the photonic IC. Next to fiber-chip interfaces we will discuss the use of silicon grating structures in III-V on silicon opto-electronic components such as integrated photodetectors and microlasers