Rare earth doped single polarization double clad optical fiber with plurality of air holes
US7280728B2 · kind B2 · utility
5Cited by
10References
18Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 22, 2004 |
| Grant date | Oct 9, 2007 |
| Priority date | — |
| Expiry date | Apr 15, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1695
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical fiber including: (i) a silica based, rare earth doped core having a first index of refraction n1; (ii) a silica based inner cladding surrounding the core and having a second index of refraction n2, such that n1>n2, said inner cladding having a plurality of air holes extending longitudinally through the length of said optical fiber; (iii) a silica based outer cladding surrounding said inner cladding and having a third index of refraction n3, such that n2>n3, wherein said optical fiber supports a single polarization mode within the operating wavelength range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.