Coupler
US4943134A · kind A · utility
1Cited by
3References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 22, 1988 |
| Grant date | Jul 24, 1990 |
| Priority date | — |
| Expiry date | Nov 22, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/3521
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical coupler comprises at least two waveguides (4,5) arranged so that light couples from one to the other. The waveguides are dissimilar and support different mode fields, and the composition or geometry of the waveguides is varied to determine the particular critical phenomenon characteristic that is required.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.