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:
Sep. 08, 2026
Filed:
Feb. 12, 2024
Shanghai University, Shanghai, CN;
Tingyun Wang, Shanghai, CN;
Jianxiang Wen, Shanghai, CN;
Yanhua Dong, Shanghai, CN;
Xiaobei Zhang, Shanghai, CN;
Yi Huang, Shanghai, CN;
Weiqi Wang, Shanghai, CN;
Shanghai University, Shanghai, CN;
Abstract
An optical fiber with wide bandwidth and high gain in an O+E band and a regulation method thereof are disclosed. The optical fiber includes a core and a cladding (). The core includes a first loose layer (), a first core layer (), a second loose layer (), a second core layer () and an inner core () from outside to inside. The first loose layer () and the second loose layer () are made of a silica material doped with high-refractive-index GeOand PO. In the first core layer () and the second core layer (), AlO, bismuth oxide and PbO are sequentially doped. The gain performance of the optical fiber is controlled by adjusting doping molar ratios of AlO, bismuth oxide and PbO. The co-doped silica optical fiber maintains fiber gains exceeding 15 dB in a wavelength range of 1260 to 1460 nm.