Fabrication of doped filament optical fibers
US5059230A · kind A · utility
8Cited by
9References
7Claims
0Family size
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Inventors
Key dates
| Filing date | Jan 22, 1990 |
| Grant date | Oct 22, 1991 |
| Priority date | — |
| Expiry date | Jan 22, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S65/90
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Reproducible doped optical fiber preforms having a predetermined dopant concentration level are fabricated by inserting a doped filament into a completed preform prior to consolidation and final collapse so that the filament and dopant materials are centrally located in the core region upon formation of the preform. Doped fiber is drawn from the doped preform using standard fiber drawing techniques.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.