Abstract

Structures that include a Bragg grating and methods of fabricating a structure that includes a Bragg grating. Bragg elements are positioned adjacent to a waveguide. The Bragg elements are separated by grooves that alternate with the Bragg elements. A dielectric layer includes portions positioned to close the grooves to define airgaps. The airgaps are respectively arranged between adjacent pairs of the Bragg elements. The Bragg elements may be used to form the Bragg grating.

Date

October 6, 2020

Authors

AP Jacob, Y Bian, T Letavic, KJ Giewont, SM Shank

Inventors

Ajey Poovannummoottil Jacob, Yusheng Bian, Theodore Letavic, Kenneth J Giewont, Steven M Shank

Patent_office

US

Patent_number

10795082

Application_number

16540452