Optical fiber and optical fiber device
US6614975B2 · kind B2 · utility
49Cited by
15References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2001 |
| Grant date | Sep 2, 2003 |
| Priority date | — |
| Expiry date | Jul 4, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/094023
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical fibre has a cladding layer surrounding a core, the cladding layer comprising at least a first, relatively inner generally cylindrical region, a third, relatively outer generally cylindrical region, and a second region disposed between the first and third regions, the second region having a higher refractive index than the first and third regions; and the peak difference in refractive index between the first cladding region and the core being less than about 0.0030.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.