Chinese Academy of Sciences

Mengting Guo

Lei Zhang

Fan Wang

Meng Wang

Lili Hu

Chunlei Yu

Xiaoqing Xu

Danping Chen

Fengguang Lou

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.

Photodarkening-resistant ytterbium-doped quartz optical fiber and preparation method therefor

Growing community of inventors

Shanghai, China

Mengting Guo