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:
Oct. 10, 2023
Filed:
Jun. 06, 2019
Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, CN;
Lili Hu, Shanghai, CN;
Fengguang Lou, Shanghai, CN;
Chunlei Yu, Shanghai, CN;
Meng Wang, Shanghai, CN;
Lei Zhang, Shanghai, CN;
Xiaoqing Xu, Shanghai, CN;
Danping Chen, Shanghai, CN;
Fan Wang, Shanghai, CN;
Mengting Guo, Shanghai, CN;
Abstract
A photodarkening-resistant ytterbium-doped quartz optical fiber and a method for prpearing such a fiber are provided. Glass of a photodarkening-resistant ytterbium-doped quartz optical fiber core rod includes at least YbO, AlO, PO, SiO. The proportions of YbO, AlO, and POin the entire substance are YbO: 0.05-0.3 mol %, AlO: 1-3 mol %, and PO: 1-5 mol %, respectively. In the preparation method for the photodarkening-resistant ytterbium-doped quartz optical fiber, a sol-gel method and an improved chemical vapor deposition method are combined. By using the molecular-level doping uniformity and the low preparation loss thereof respectively, ytterbium ions, aluminum ions and phosphorus ions are effectively doped in a quartz matrix, thereby effectively solving the problems in the optical fiber of high loss, photodarkening caused by cluster or the like, and a central refractive index dip.