Energy transmission optical fiber
US4893896A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 1988 |
| Grant date | Jan 16, 1990 |
| Priority date | — |
| Expiry date | Jul 8, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/102
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention relates to an energy transmission optical fiber which is a medium for transmitting high-energy beams within an ultraviolet range such as laser beams. Since an optical fiber according to the present invention comprises a core formed of pure silica and a clad having a graded index type distribution of refractive index and said clad is disposed on an interface between the core and the clad where many structural defects are generated, the transmission loss is not increased even after the transmission of high-energy beams for a long time. In addition, since the optical fiber according to the present invention comprises the core formed of pure silica having a high melting point, the high-energy beams can be transmitted without generating a melting fracture in the core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.