Microbend-resistant optical fiber
US8385705B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2012 |
| Grant date | Feb 26, 2013 |
| Priority date | — |
| Expiry date | Mar 26, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/03688
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is an improved, single-mode optical fiber possessing 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 secondary coating provides improved ribbon characteristics for structures that are robust, yet easily entered (i.e., separated and stripped). The optional dual coating is specifically balanced for superior heat stripping in fiber ribbons, with virtually no residue left behind on the glass. This facilitates fast splicing and terminations. The improved coating system provides optical fibers that offer significant advantages for deployment in most, if not all, fiber-to-the-premises (FTTx) systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.