Method of manufacturing a limited mode optical fiber
US4140505A · kind A · utility
8Cited by
8References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 12, 1976 |
| Grant date | Feb 20, 1979 |
| Priority date | — |
| Expiry date | Jul 12, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B2203/26
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A single mode optical fiber having a central core region of uniform composition and thickness and core end regions each having a core with a graded composition and increasing thickness. The fiber towards the ends of the fiber maintains a constant normalized frequency with a minimum bending loss. Methods are also provided for forming the fibers from a fiber optic preform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.