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.

Date of Patent:
Feb. 22, 2022

Filed:

Oct. 05, 2020
Applicants:

Globalfoundries U.s. Inc., Santa Clara, CA (US);

Khalifa University of Science and Technology, Abu Dhabi, AE;

Inventors:

Sujith Chandran, Abu Dhabi, AE;

Yusheng Bian, Ballston Lake, NY (US);

Jaime Viegas, Abu Dhabi, AE;

Ajey Poovannummoottil Jacob, Watervliet, NY (US);

Assignees:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/122 (2006.01); G02B 6/12 (2006.01);
U.S. Cl.
CPC ...
G02B 6/1228 (2013.01); G02B 6/1225 (2013.01); G02B 2006/1213 (2013.01); G02B 2006/12119 (2013.01); G02B 2006/12147 (2013.01); G02B 2006/12195 (2013.01);
Abstract

Structures for an optical power splitter and methods of forming a structure for an optical power splitter. A first waveguide core provides an input port, and second and third waveguide cores provide respective output ports. A non-linear waveguide taper is coupled to the first waveguide core at a first interface and is coupled to the second and third waveguide cores at a second interface. The non-linear waveguide taper includes a first curved section having a first width dimension that increases with increasing longitudinal distance from the first interface. The non-linear waveguide taper includes a second curved section having a second width dimension that increases with increasing longitudinal distance from the second interface. The first and second curved sections join at a longitudinal location at which the first and second width dimensions are each equal to a maximum width of the non-linear waveguide taper.


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