Optical coupling device
US4983007A · kind A · utility
25Cited by
8References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 11, 1989 |
| Grant date | Jan 8, 1991 |
| Priority date | — |
| Expiry date | Sep 11, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4289
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A coupling device couples low power levels of optical radiation out of an optical fibre (3) for maintenance and fault-finding purposes. The assembled coupling device acts to clamp a fibre (3), with its primary plastics coating still in place, against the inner side of a gently curved silica rod (1). The rod (1) is strongly waveguiding and, picking up radiation leaked from the fibre (3), directs it to a photodetector (6). The device finds particular application in optical communications systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.