Optical fiber cable with plural modular bundles of hermtically sealed optical fibers inside an outer cable sheath
US5703984A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 1995 |
| Grant date | Dec 30, 1997 |
| Priority date | — |
| Expiry date | Sep 19, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/03611
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention concerns an optical fiber cable containing a plurality of optical fibers split up into modules, each module being covered with a supporting sheath in contact with the outer optical fibers of the module so as to hold the optical fibers contained in said module tightly so that they are mechanically coupled to one another, the entire set of modules being disposed inside a covering made of an insulating material, which covering is in contact with the outer modules of the set of modules so as to form a compact assembly comprising all of the modules; wherein each optical fiber has a cut-off wavelength of not more than 1,350 nm, and, at a wavelength in the vicinity of 1,550 nm, has a mode field diameter lying in the range 7 .mu.m to 9 .mu.m, and wherein each optical fiber is provided with a substantially hermetic coating on its optical cladding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.