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:
May. 13, 2025
Filed:
Jul. 15, 2022
Taiwan Semiconductor Manufacturing Co., Ltd., Hsinchu, TW;
Cheng-Tse Tang, Hsinchu, TW;
Chewn-Pu Jou, Hsinchu, TW;
Taiwan Semiconductor Manufacturing Co., Ltd., Hsinchu, TW;
Abstract
A device includes an optical isolator disposed between adjacent optical waveguides along a direction. The optical isolator has vertical or horizontal dimensions that are different than at least one of the optical waveguides. The vertical and horizontal dimensions are greater than vertical and horizontal dimensions of at least one of the waveguides. In various embodiments, the structure of the optical isolator can be a planar structure, a columnar periodic structure, or a grating structure. The material of the optical isolator can be a metallic material or a dielectric material. In some embodiments, the optical isolator and the optical waveguides are used to enhance the performance of an optical multiplexing device.