Method of forming an optical fibre junction
US4896932A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 21, 1988 |
| Grant date | Jan 30, 1990 |
| Priority date | — |
| Expiry date | Nov 21, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of preparing a junction between the cores of two D-optical fibers comprises bending a first fiber around a curved surface and causing its flat face to face outwards, superposing a second D-fiber on the first fiber, bending the second fiber around the curved surface causing its flat face to fact towards the curved surface, and controlling the lateral position of the superposed fibers on the curved surface to provide a predetermined separation between the cores of the fibers. When both fibers are arranged in a plane normal to the axis of the curved surface the flat faces of both fibers lie strictly parallel to the surface and thus the flat faces of both superposed fibers are substantially in contact with one another so that the cores of both fibers are close together. However, when at least one fiber is deflected from a normal plane the flat face of the fiber tilts with respect to the cylindrical surface with the degree of tilt being proportional to its lateral deviation and the sense in which the fiber tilts being dependent upon the direction of its deviation. This effect is used to obtain a precise and predetermined separation between the cores of the superposed fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.