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. 03, 2026
Filed:
Aug. 25, 2022
Huawei Technologies Canada Co., Ltd., Kanata, CA;
Universite Laval, Quebec, CA;
Sophie Larochelle, Quebec, CA;
Charles Matte-Breton, Quebec, CA;
Pierre-Olivier Janvier, Levis, CA;
Leslie Ann Rusch, Quebec, CA;
Lixian Wang, Quebec, CA;
Huawei Technologies Canada Co., Ltd., Kanata, CA;
Universite Laval, Quebec, CA;
Abstract
An optical fiber and an optical amplifier including the optical fiber are disclosed, the optical fiber includes a core region for guiding a propagation of a multimode optical signal, a cladding region laterally surrounding the core region and at least two doped rings, each of the at least two doped rings having a corresponding rare-earth or transition metal dopant concentration. The core region includes a central core having a first refractive index, at least one core layer laterally surrounding the central core, each of the at least one core layer having corresponding internal and external radii, an internal radius of an innermost core layer corresponding to a radius of the central core and an external radius of the outermost core layer corresponding to a radius of the core region.