Optical fiber fabrication process
US4191545A · kind A · utility
6Cited by
3References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 1979 |
| Grant date | Mar 4, 1980 |
| Priority date | — |
| Expiry date | Mar 2, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/57
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Glass tubes which form an integral part of optical fiber preforms from which optical fibers are drawn are fabricated from tubular structures comprising amorphous powdery particles. The tubular structures are heated so as to fuse the particles thereby yielding a transparent tubular glass structure of optical fiber quality. During the fusing step, the structure is substantially constrained against shrinkage in both the radial and longitudinal direction thereby yielding a glass tube with improved dimensional characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.