Method for producing an optical fibre telecommunications cable with reduced polarization mode dispersion
US7016576B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2001 |
| Grant date | Mar 21, 2006 |
| Priority date | — |
| Expiry date | Aug 31, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/03644
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical cable for telecommunications having an optical core and a plurality of protecting and reinforcing elements or avers placed around the optical core. The optical core has a central reinforcing element, a polymer layer, a plurality of optical fibers incorporated in the polymer layer and a thin sheath which covers the polymer layer. The optical fibers have an alternating spin about their own axes with a maximum value of at least 4 twists per meter, and a core having a mean ellipticity in the range of 0.25 to 0.55, in such a way that the effects of birefringence of the fibers caused by the cabling process are significantly reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.