Light energy broadening coupler
US5432872A · kind A · utility
9Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 19, 1994 |
| Grant date | Jul 11, 1995 |
| Priority date | — |
| Expiry date | Jan 19, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/2804
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical device comprising an optical waveguide (13) on a substrate (11) which over part of its length forms one of a stack (15) of coupled optical waveguide sections of the same length, the stack being of a length such that a light wave of predetermined frequency propagating along the waveguide (13) to enter the stack (15) at one end thereof produces light waves at the other end of the stack which are substantially in phase adjacent each waveguide section. The device finds particular application for coupling light from a substrate waveguide into another waveguide, e.g. an optical fibre (27), off the substrate (11).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.