Method for connecting optical fibres without Fresnel reflection and system thus detained, variable optical attenuator and system using this attenuator to measure the effect of the reflection coeficient on an optical line
US4986627A · kind A · utility
13Cited by
1References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 8, 1989 |
| Grant date | Jan 22, 1991 |
| Priority date | — |
| Expiry date | Jun 8, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/3863
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
This invention concerns a method for connecting optical fibres, comprising stages consisting in (i) effecting a controlled rough polishing of the interface (5) of the fibres (1) to be connected, (ii) steeping the ends of the fibres (1) in a concentrated solution hydrofluoric acid and (iii) aligning then connecting the fibres (1) using an index matching material (FIG. 4). The invention also concerns a variable optical attenuator and a system using this attenuator to measure the effect of the reflection coefficient on an optical line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.