Method for manufacturing a primary preform for optical fibres, primary preform, final preform, optical fibre
US8863557B2 · kind B2 · utility
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10References
17Claims
0Family size
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Key dates
| Filing date | Sep 20, 2012 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Nov 13, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/57
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for manufacturing a primary preform for an optical fiber wherein conditions are created in the reaction zone such that one or more glass layer packages made up of at least two separate glass layers are deposited on the interior of the substrate tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.