resonant waveguide gratinggrating waveguide
apodized grating coupler
grating coupling strength
surface relief grating waveguide
grating couplers wikipedia

Grating waveguide structures. A grating coupler that is extended over the whole surface of the grating results in a combined structure sometimes called a grating waveguide structure. In such a structure, light cannot be guided, as any light coupled in is also coupled out. Low-loss two-dimensional silicon photonic grating coupler with a backside metal High efficiency grating coupler between silicon-on-insulator waveguides and 16 Feb 2017 Discussion today: Grating couplers. Today we will discuss how we can couple light between optical fibers and on-chip photonic waveguides. 30 Nov 2017 Considering a beam coupling from the SOI waveguide to a fiber, a low grating directionality (?65%) means that a large percentage of the designing efficient grating couplers on Silicon-on-Insulator (SOI) and other allied . the grating coupler is excited from fundamental mode in slab waveguide, 4 Aug 2006 Waveguide grating couplers are suitable for this task. The use of grating couplers to couple light into thin-film waveguides is well known.3–5) 18 Sep 2003 is described along with the grating coupler fabrication process. A grating coupler fabricated by etching gratings into the nitride waveguide .The use of an array of holes instead of a conventional waveguide grating provides an additional degree of freedom in the design of the coupler, thus enabling