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:
Sep. 30, 2025
Filed:
Sep. 15, 2021
Applicant:
Intel Corporation, Santa Clara, CA (US);
Inventors:
Difeng Zhu, San Diego, CA (US);
Razi Dehghannasiri, Albuquerque, NM (US);
David Mathine, Albuquerque, NM (US);
Eveline Rigo, Tijeras, NM (US);
Assignee:
Intel Corporation, Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/122 (2006.01); G01M 11/00 (2006.01); G02B 6/12 (2006.01);
U.S. Cl.
CPC ...
G01M 11/30 (2013.01); G02B 6/1223 (2013.01); G02B 2006/12061 (2013.01); G02B 2006/12147 (2013.01);
Abstract
A photonics integrated circuit includes a first waveguide and a second waveguide. A portion of the first waveguide has a first cladding with a first refractive index. The second waveguide includes a second cladding with a second refractive index different from the first refractive index. Also disclosed is a test circuit for a photonics integrated circuit. The test circuit can be used to determine waveguide losses, and used to tune the waveguide losses.