Abstract

Structures for an edge coupler and methods of fabricating a structure for an edge coupler. A waveguide core and a coupler are formed over a layer stack that includes a first dielectric layer and a second dielectric layer over the first dielectric layer. The coupler includes a first plurality of grating structures and a transition structure including a second plurality of grating structures that are positioned between the first plurality of grating structures and the waveguide core. The first plurality of grating structures include respective widths that vary as a function of position relative to the transition structure.

Metadata

publication

US Patent 10,816,726, 2020

year

2020

publication date

2020/10/27

authors

B Peng, Y Bian, AP Jacob, T Houghton, A Sahin

link

https://patents.google.com/patent/US10816726B1/en

resource_link

https://patentimages.storage.googleapis.com/28/2d/5c/6d57a0b678276b/US10816726.pdf

inventors

Bo Peng, Yusheng Bian, Ajey Poovannummoottil Jacob, Thomas Houghton, Asli Sahin

patent_office

US

patent_number

10816726

application_number

16549415