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:
Aug. 07, 2018
Filed:
Apr. 05, 2017
Xilinx, Inc., San Jose, CA (US);
Austin H. Lesea, Los Gatos, CA (US);
XILINX, INC., San Jose, CA (US);
Abstract
Embodiments herein describe techniques for testing or aligning optical components in a photonic chip using a grating coupler. In one embodiment, the photonic chip may include an edge coupler and a grating coupler for optically coupling the photonic chip to external fiber optic cables. The edge coupler may be disposed on a side or edge of the photonic chip while the grating coupler is located on a top or side of the photonic chip. During fabrication, the edge coupler may be inaccessible. Instead of using the edge coupler to test the photonic chip, a testing apparatus can use the grating coupler along with a splitter to transfer optical test signals between an optical component in the photonic chip (e.g., a modulator or detector) and a test probe optically coupled to the grating coupler.