Graded-index fiber for multimode optical communication
US4025156A · kind A · utility
18Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 1975 |
| Grant date | May 24, 1977 |
| Priority date | — |
| Expiry date | Sep 12, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0288
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Graded-index fibers, which are the most promising for first-generation optical communication links, are improved for multimode transmission by employing two or more glassy dopants in the core mutually graded with respect to the silica host and to each other to provide simultaneously minimized intermode dispersion at a first-selected wavelength and, in addition, a broader wavelength range of minimized intermode dispersion, or minimized intermode dispersion at a second distinct wavelength pertinent to the multimode transmission, or optimization of another dispersion-related property of said fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.