Double clad rare earth doped fiber
US7139458B2 · kind B2 · utility
13Cited by
7References
22Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 19, 2005 |
| Grant date | Nov 21, 2006 |
| Priority date | — |
| Expiry date | Jan 19, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B2203/32
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An optical fiber comprising: (i) a silica based, rare earth doped core having a first index of refraction n1; (ii) a silica based inner cladding surrounding the core having a second index of refraction n2, such that n1>n2; (iii) a silica based outer cladding surrounding the inner cladding having a third index of refraction n3 such that n2>n3, wherein inner cladding diameter is at least 125 μm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.