High carrier injection optical waveguide switch
US6633692B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2001 |
| Grant date | Oct 14, 2003 |
| Priority date | — |
| Expiry date | Jul 31, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/217
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Based on the two-mode interference principle and the free-carrier plasma dispersion effect, a high carrier injection optical waveguide includes: a pair of optical waveguide elements, one functioning as an optical waveguide input and the other functioning as an optical waveguide output; a two-mode interference (TMI) region, made of semiconductor material, between the optical waveguide input and the optical waveguide output; first and second carrier injection regions; and a lateral carrier collection region, the lateral carrier collection region and the first carrier injection region being positioned on opposite sides of the TMI region with the second carrier injection region being positioned between the lateral carrier collection region and the first carrier injection region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.