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:
Mar. 10, 2026
Filed:
Jan. 20, 2023
Ii-vi Photonics, Inc., Fuzhou, CN;
II-VI Photonics, Inc., Fuzhou, CN;
Abstract
A photonics integrated circuit chip includes first and second optical waveguides formed on a semiconductor substrate. Light input into the first optical waveguide passes through a first optical isolator and a coupler formed on the substrate. The coupler outputs light from the first optical isolator combined with light from an off-substrate pump light source to an off-substrate optical fiber which outputs the combined light into the second optical waveguide for passage through a second optical isolator formed on the substrate. The substrate may also include third and fourth optical waveguides. Light input into the third optical waveguide passes through a third optical isolator and a second coupler formed on the substrate. The second coupler outputs light from the second optical isolator combined with light from the pump light source to an off-substrate second optical fiber which outputs the combined light into the fourth optical waveguide for passage through a fourth optical isolator formed on the substrate.