Anti-PMD system for optical fibers
US7383703B2 · kind B2 · utility
0Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2003 |
| Grant date | Jun 10, 2008 |
| Priority date | — |
| Expiry date | Jan 4, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B2205/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An anti-PMD system comprises a pulley which oscillates in rotation and applies a torsion torque alternately in the clockwise direction and in the counterclockwise direction to an optical fiber during drawing of the optical fiber to reduce its PMD. A portion of a peripheral external surface of the pulley intended to be in contact with the optical fiber during drawing is convex.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.