Optical fiber and manufacturing method thereof
US7486862B2 · kind B2 · utility
6Cited by
7References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 18, 2004 |
| Grant date | Feb 3, 2009 |
| Priority date | — |
| Expiry date | Dec 11, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/57
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A core rod is inserted into a cladding pipe, moisture in a space between the core rod and the cladding pipe is removed, and an optical fiber is drawn while the space is connected to a dry-gas atmosphere and/or being decompressed and while the core rod and the cladding pipe are being unified with each other. Alternatively, the core rod is inserted into the cladding pipe, and an optical fiber is drawn from one end while moisture on the surface of the core rod and the internal surface of the cladding pipe is being removed. Accordingly, a high quality optical fiber is manufactured with good productivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.