Method of manufacturing optical fiber base material and apparatus of the same
US8839645B2 · kind B2 · utility
0Cited by
4References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 22, 2013 |
| Grant date | Sep 23, 2014 |
| Priority date | — |
| Expiry date | Jul 22, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B37/0146
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of manufacturing an optical fiber base material includes: forming a porous glass base material by depositing glass particles; providing a synthetic quartz glass vessel at least partly made of quartz glass which contains aluminum equal to or less than 0.01 ppm; introducing dehydration reaction gas and inert gas into the vessel; heating a portion made of quartz glass which contains aluminum equal to or less than 0.01 ppm in the vessel that contains the dehydration reaction gas and the inert gas; and inserting the porous glass base material into the heated vessel to dehydrate and sinter the porous glass base material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.