Variable ratio optical junction device
US4135779A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 2, 1976 |
| Grant date | Jan 23, 1979 |
| Priority date | — |
| Expiry date | Aug 2, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/2804
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical fiber junction device for coupling a pair of optical fibers with a third optical fiber. A portion of the cladding is etched from the end portions of the pair of fibers, and those end portions are then secured together in side-by-side relationship so that their endfaces are coplanar. The third fiber is so disposed that the end portion thereof is substantially parallel to the end portions of the pair of fibers, and its endface is adjacent to the endfaces of the pair of fibers. Means is provided for causing lateral movement between the endfaces of the pair of fibers and that of the third fiber to vary the amount of light coupled between the pair of fibers and the third fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.