Radiation-resistant rare-earth-doped optical fiber and method of radiation-hardening a rare-earth-doped optical fiber
US9025925B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 8, 2011 |
| Grant date | May 5, 2015 |
| Priority date | — |
| Expiry date | Jan 20, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1618
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A radiation-resistant optical fiber includes at least one core and at least one first cladding surrounding the core. The core includes a phosphosilicate matrix, the core being rare-earth doped, the rare earth being chosen from erbium, ytterbium, neodymium, thulium or erbium-ytterbium of thulium-holmium codoped and the core is cerium codoped. Also described is a method for radiation-hardening an optical fiber including the core having a phosphosilicate matrix, the core being rare-earth doped, the rare earth being chosen from erbium, ytterbium, neodymium and thulium, or erbium-ytterbium or thulium-holmium codoped, and including a step of cerium codoping the core of the fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.