Patent · US Active

Large-effective-mode-area low-loss optical fiber with optimized cladding components

US12099233B2 · kind B2 · utility

0Cited by

1References

10Claims

0Family size

Assignee

JIANGSU ETERN OPTICAL FIBER TECHNOLOGY CO., LTD. · CN

Inventors

Longfei Wang · Longbeilingcun, CN
Fan Li · Morristown, US
Lihong Sui · Suzhou, CN

Key dates

Filing date	Jul 20, 2020
Grant date	Sep 24, 2024
Priority date	—
Expiry date	Jan 12, 2041

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC03B2203/23
WIPO fieldOptics
WIPO sectorInstruments

Abstract

The present invention provides a large-effective-mode-area low-loss optical fiber with optimized cladding components, which comprises a core layer and a cladding comprising, from the inside to the outside, a first sinking layer, a second sinking layer, an optional third sinking layer, and an outer cladding. In the present invention, phosphorus and aluminum are co-doped in the optical fiber cladding, to form a tetrahedron [AlPO4] in glass, thus optimizing the viscosity of the cladding while effectively reducing the refractive index of the cladding, without causing increased hydrogen loss. The process is simple, and highly repeatable.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.