Optical fiber coupler
US4747652A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 25, 1984 |
| Grant date | May 31, 1988 |
| Priority date | — |
| Expiry date | May 25, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4289
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical fiber coupler for injecting light into, and withdrawing light from, an optical fiber utilizes a deformable material (8) and a clamping member (4) which clamp a buffered optical fiber (6) therebetween. Both the clamping member and deformable material are curved causing the optical fiber to be bent when so clamped resulting in light coupling between an optical fiber core and the deformable material through the fiber buffer. The deformable material is substantially transparent and has an index of refraction substantially equal to that of an outer surface of the optical fiber. A light element has a surface embedded within the deformable material, and the deformable material and coupler are specifically formed so as to reduce microbend stresses induced in the fiber when so clamped so as to increase coupling efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.