Silicon photonics is an enabling technology that provides integrated photonic devices and
systems with low-cost mass manufacturing capability. It has attracted increasing attention in …

Fiber to chip coupling is a critical aspect of any integrated photonic circuit. In terms of ease of
fabrication as well as wafer-scale testability, surface grating couplers are by far the most …

Silicon photonics has drawn increasing attention in the past few decades and is a promising
key technology for future daily applications due to its various merits including ultra-low cost …

We report the first successful experimental evaluation of the effect of grating height upon the
output efficiency of grating couplers as predicted using perturbation theory. In addition, we …

Silicon photonic grating couplers are demonstrated featuring a perfect vertical coupling and
predicted coupling efficiencies of 87% and 78% with an apodized and a standard periodic …

Grating couplers enable position-friendly interfacing of silicon chips by optical fibers. The
conventional coupler designs call upon comparatively complex architectures to afford …

We present a simple and practical strategy that allows to design high-efficiency grating
couplers. The technique is based on the simultaneous apodization of two structural …

Short-wavelength mid-infrared (2–2.5 μm wave band) silicon photonics has been a growing
area to boost the applications of integrated optoelectronics in free-space optical …

A new generation of Silicon-on-Insulator fiber-to-chip grating couplers which use a silicon
overlay to enhance the directionality and thereby the coupling efficiency is presented …

A high efficiency broadband grating coupler for Silicon-On-Insulator waveguides was
designed. The grating coupler is defined by locally adding a poly-Silicon layer on top of the …