High-efficiency fiber-to-chip grating couplers realized using an advanced CMOS-compatible Silicon-On-Insulator platform

TL;DR: In this article, a monolithically fabricated apodized a-Si:H grating coupler with metal mirror was demonstrated and the minimum groove length was more than 100 nm and measured coupling efficiency was 70%.

TL;DR: In this article, a 2D finite-difference time-domain (FDTD) simulation of fiber-to-chip coupling was performed using In-GaAsP/InGaAIAs compounds.

TL;DR: In this article, the authors proposed a method to tune a wavelength of a wavelength tunable laser device using a gain element that provides optical gain, where each of the at least two optical modulators has a different optical cavity length.

TL;DR: In this paper , a grating coupler on the LNOI platform for an optical fiber to an ultra-low-loss silicon nitride (Si3N4) waveguide was proposed.

TL;DR: A high efficiency broadband grating coupler for Silicon-On-Insulator waveguides was designed and the device layout is compatible with standard CMOS technology processing.

TL;DR: In this article, an efficient grating coupler for coupling light between optical fibers and silicon-on-insulator waveguides was designed and fabricated by direct etching with a focused ion beam using iodine gas and an alumina hard mask.

TL;DR: In this paper, the authors investigated the tapering problem of the fundamental quasi-TM mode in thin asymmetrical waveguides and proposed three nonadiabatic taper solutions, a focusing grating coupler, a lensed taper and a discontinuous taper, which circumvent these mode conversions.

TL;DR: In this paper, a new type of high efficiency grating coupler based on single crystalline Si nanomembrane overlay and stacking was designed for the purpose of coupling light between single mode fibres and nanophotonic waveguides, and for the coupling between multiple photonic interconnect layers for compact three-dimensional vertical integration.