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:
Nov. 16, 2021
Filed:
Oct. 25, 2019
Elenion Technologies, Llc, New York, NY (US);
Ruizhi Shi, New York, NY (US);
Thomas Wetteland Baehr-Jones, Arcadia, CA (US);
Yangjin Ma, Brooklyn, NY (US);
Yang Liu, Elmhurst, NY (US);
Michael J. Hochberg, New York, NY (US);
Matthew Akio Streshinsky, New York, NY (US);
Alexandre Horth, Astoria, NY (US);
Nokia Solutions & Networks Oy, Espoo, FI;
Abstract
A low loss high extinction ratio on-chip polarizer is disclosed. The polarizer includes an input waveguide taper having an outer waveguiding region that widens in the direction of light propagation along at least a portion of the taper length, and a core waveguiding region that narrows in the direction of light propagation along at least a portion of the taper length, so as to selectively squeeze out light of undesired modes into the outer regions while preserving light of a desired mode in the waveguide core. An output filter section is provided to prevent light from reentering the output waveguide after being squeezed out. An integrated light absorber/deflector may be coupled to the outer waveguiding regions.