Phase shifting optical device with dopant barrier
US7035487B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2004 |
| Grant date | Apr 25, 2006 |
| Priority date | — |
| Expiry date | Jun 21, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/0152
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A doped barrier region included in an optical phase shifter is disclosed. In one embodiment, an apparatus according to embodiments of the present invention includes a first region of an optical waveguide and a second region of the optical waveguide. The second region of the optical waveguide includes a higher doped region of material and a lower doped region of material. An insulating region disposed between the first and second regions of the optical waveguide is also included. A first portion the higher doped region is disposed proximate to the insulating region. A dopant barrier region is also included and is disposed between the higher and lower doped regions of the second region of the optical waveguide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.