Abstract

Structures for a grating coupler and methods of fabricating a structure for a grating coupler. The grating coupler includes a first plurality of grating structures and a second plurality of grating structures that alternate with the first plurality of grating structures in an interleaved arrangement. The first plurality of grating structures are composed of a dielectric material or a semiconductor material. The second plurality of grating structures are composed of a tunable material having a refractive index that changes with an applied voltage.

Date

2020

Authors

Y Bian, AP Jacob

Inventors

Yusheng Bian, Ajey Poovannummoottil Jacob

Patent_office

US

Patent_number

10816872

Application_number

16516658