Optical-fiber loose tube cables
US8041167B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 9, 2009 |
| Grant date | Oct 18, 2011 |
| Priority date | — |
| Expiry date | Nov 9, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4434
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is an improved optical fiber that employs a novel coating system. When combined with a bend-insensitive glass fiber, the novel coating system according to the present invention yields an optical fiber having exceptionally low losses.The coating system features (i) a softer primary coating with excellent low-temperature characteristics to protect against microbending in any environment and in the toughest physical situations and, optionally, (ii) a colored secondary coating possessing enhanced color strength and vividness.The improved coating system provides optical fibers that are useful in buffer tubes and cables having relatively high filling coefficients and fiber counts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.