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. 30, 2025
Filed:
Sep. 02, 2022
Applicant:
Cisco Technology, Inc., San Jose, CA (US);
Inventors:
Jean-Luc J. Tambasco, Macungie, PA (US);
Jonathan Edgar Roth, San Mateo, CA (US);
Assignee:
CISCO TECHNOLOGY, INC., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/125 (2006.01); G02B 6/126 (2006.01); G02B 6/14 (2006.01); G02B 6/12 (2006.01);
U.S. Cl.
CPC ...
G02B 6/126 (2013.01); G02B 6/125 (2013.01); G02B 6/14 (2013.01); G02B 2006/12061 (2013.01); G02B 2006/1215 (2013.01);
Abstract
A polarization rotator includes a bus waveguide disposed on a first layer having a longitudinal axis, a first end, and a second end, and a first upper waveguide and a second upper waveguide disposed on a second layer, above the first layer, the first upper waveguide and the second upper waveguide widening as the first upper waveguide and the second upper waveguide extend from the first end to the second end. The first upper waveguide and the second upper waveguide may also symmetrically bend toward each other and then away from each other proximate the second end.