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:
Jun. 16, 2026
Filed:
Jul. 26, 2023
Ali Eshaghian Dorche, Goleta, CA (US);
Minh Tran, Goleta, CA (US);
Tin Komljenovic, Goleta, CA (US);
Ali Eshaghian Dorche, Goleta, CA (US);
Minh Tran, Goleta, CA (US);
Tin Komljenovic, Goleta, CA (US);
Nexus Photonics Inc, Goleta, CA (US);
Abstract
An optical device has five elements fabricated on one substrate. The first has an active waveguide structure supporting a first mode. The second has a passive waveguide supporting a second mode. The third has a passive waveguide supporting a third mode. The fourth element has a heatsink thermally coupled to the first element. The fifth element, at least partly butt-coupled to the first element, has an intermediate waveguide supporting an intermediate mode. The effective mode area of the third mode is larger than that of the second mode; A tapered waveguide structure in the second or fifth element facilitates efficient adiabatic transformation between the second mode and the intermediate mode. A tapered waveguide structure in at least one of the second and third elements facilitates efficient adiabatic transformation between the second mode and the third mode. No adiabatic transformation occurs between the intermediate mode and the first mode.