Method of making optical waveguides
US4125388A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 13, 1978 |
| Grant date | Nov 14, 1978 |
| Priority date | — |
| Expiry date | Feb 13, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S65/90
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of making low loss glass optical waveguides, wherein at least one coating of glass soot is deposited by the flame hydrolysis process on a starting member. The starting member is removed from the coating material or glass soot preform leaving an aperture therein, and a tube is secured to one end of the preform. While the preform is heated to its consolidation termperature, an atmosphere including a drying agent flows from the tube into the aperture and through the porous preform, thereby removing water from the preform while the soot is consolidated to form a dense glass article. The tube can be removed, and the resultant dense glass article can be drawn into an optical waveguide fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.