Exposed core optical fibers, and method of making same
US4630890A · kind A · utility
41Cited by
6References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 22, 1983 |
| Grant date | Dec 23, 1986 |
| Priority date | — |
| Expiry date | Jun 22, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B2203/32
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention provides a method for making an optical fiber with a uniformly thin section of cladding. A preform having a core and at least one cladding layer is first made. The preform is prepared by cutting the preform so that the core is close to the surface of the preform. An optical fiber is pulled from the cut preform so the core is close to the surface of the optical fiber. The fiber may have cladding further removed by etching. A material selective etch may be used to make a protruding core fiber. Etching may be done on the preform before pulling the fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.