Method of making optical waveguides
US3933454A · kind A · utility
86Cited by
3References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 22, 1974 |
| Grant date | Jan 20, 1976 |
| Priority date | — |
| Expiry date | Apr 22, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S65/90
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
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 soot coating is heated to its consolidation temperature in an atmosphere containing helium and an amount of chlorine that is effective to substantially remove the water from the glass soot while the soot is being consolidated to form a dense glass layer. The starting member is removed unless it is to form a part of the optical waveguide. The resultant structure, including the dense glass body, is then drawn into a waveguide fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.