Ytterbium-doped optical fiber, fiber laser and fiber amplifier
US8941912B2 · kind B2 · utility
219Cited by
6References
13Claims
0Family size
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Key dates
| Filing date | Feb 3, 2011 |
| Grant date | Jan 27, 2015 |
| Priority date | — |
| Expiry date | Sep 22, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1693
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An ytterbium-doped optical fiber includes: a core which contains at least ytterbium, aluminum, and phosphorus; and a cladding which encircles the core, wherein an aluminum oxide equivalent concentration of the aluminum in the core is 0.2 mol % or more, a diphosphorus pentaoxide equivalent concentration of the phosphorus is higher than the aluminum oxide equivalent concentration, and the core either does not contain germanium or contains less than 1.1 mol % of germanium in a germanium dioxide equivalent concentration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.