Optical cable for telecommunications
US6853780B1 · kind B1 · utility
13Cited by
12References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 17, 2000 |
| Grant date | Feb 8, 2005 |
| Priority date | — |
| Expiry date | Mar 17, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4484
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Optical cable (1) for telecommunications, having low PMD and attenuation values, said cable comprising a central element (4), a plurality of optical fibres (3) and a layer of polymer material (5) devoid of discontinuities and incorporating both the central element (4) and the optical fibres, each of the optical fibres (3) being ranged along an open helix trajectory along which it has a torsion with a mean value of zero and a local maximum value of between 0.05 turns/m and 1 turns/m.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.