Water blocking optical fiber cable
US6504979B1 · kind B1 · utility
41Cited by
8References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2001 |
| Grant date | Jan 7, 2003 |
| Priority date | — |
| Expiry date | Sep 6, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/44384
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The specification describes a water blocking tape for an optical fiber cable wherein the optical fibers in the cable are wrapped with a synthetic fibrous non-woven tape coated with a superabsorbent polymer powder coating. The particles in the powder are ultra-fine, i.e. have less than 10% weight fraction over 250 microns in diameter, and less than 2% weight fraction over 300 microns in diameter. Controlling the particle size within this small range is found to reduce microbending losses in the optical fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.