The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 17, 2024
Filed:
May. 05, 2022
Ranovus Inc., Kanata, CA;
Ryan Murray Hickey, Stittsville, CA;
RANOVUS INC., Kanata, CA;
Abstract
An example device comprises: a substrate comprising a waveguide material having a waveguide refractive index (RI); a first layer of oxide on the substrate having an RIlower than the RI; a waveguide on the first oxide layer, the waveguide comprising the waveguide material having the RI; a second oxide layer on the waveguide and the first oxide layer, the second oxide layer having a second RIhigher than the RIand less than the RI, the first oxide layer, the waveguide and the second oxide layer forming an end face for light coupling, and the waveguide extending inwards from the end face and increasing in effective RI from the end face; and an index matching material on the second oxide layer that encapsulates at least the second oxide layer and the end face, a respective RI of the index matching material being about index matched to the RI.