Optical coupler and process for preparation thereof
US4966432A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 1989 |
| Grant date | Oct 30, 1990 |
| Priority date | — |
| Expiry date | Oct 24, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4246
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical coupler comprising N number (where N stands for an integer of not less than 2) of optical fibers having one ends integrated and the other ends branched and N number of optical coupler parts, wherein the top end of each light branching-coupling optical fiber has a plane of 360.degree./N including an inclined branching fiber-abutting plane inclined at an angle .theta. to the optical fiber axis and a light-coupling plane vertical to the abutting plane, each of the optical coupler parts is constructed by inserting the light branching-coupling optical fiber in an optical fiber-retaining hole of a block having the same plane as the branching fiber-abutting plane of the optical fiber and a light-coupling plane vertical to the abutting plane, and the branching fiber-abutting planes of the optical coupler parts are engaged with each other to construct a optical coupler.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.