Selective optical signal switch and/or combiner
US5454058A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 24, 1992 |
| Grant date | Sep 26, 1995 |
| Priority date | — |
| Expiry date | Nov 24, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0052
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An optical component fabricated from a semi-conductor wafer in which the epilayers are in the InCaAsP system comprises a pair of ridge waveguides. The ridge waveguides are proximate and parallel to each other in a first region, and diverge from each other in a second region. Each waveguide has a continuous electric contact over its upper surface to provide a first light amplification zone through or beneath at least a portion of both first and second light guiding paths and a second light amplification zone through or beneath at least a portion of both the first and a third light guiding path. The component can be used as a low loss 1.times.2 switch, or as a low loss 2.times.1 combiner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.