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. 13, 2016
Filed:
Sep. 24, 2013
Applicant:
Oracle International Corporation, Redwood City, CA (US);
Inventors:
Xuezhe Zheng, San Diego, CA (US);
Jin Yao, San Diego, CA (US);
Guoliang Li, San Diego, CA (US);
Ying L. Luo, San Diego, CA (US);
John E. Cunningham, San Diego, CA (US);
Ashok V. Krishnamoorthy, San Diego, CA (US);
Assignee:
ORACLE INTERNATIONAL CORPORATION, Redwood Shores, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/025 (2006.01); G02B 6/24 (2006.01); G02F 1/015 (2006.01);
U.S. Cl.
CPC ...
G02F 1/025 (2013.01); G02B 6/24 (2013.01); G02F 2001/0154 (2013.01); G02F 2201/302 (2013.01);
Abstract
A photonic integrated circuit (PIC) is described. This PIC includes a grating coupler for surface-normal coupling that has an alternating pattern of grating teeth and grating trenches, where the grating trenches are filled with an electro-optical material. By applying an electric potential to the grating teeth, the index of refraction of the electro-optical material can be modified.