Semiconductor optical modulator
US7355778B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2004 |
| Grant date | Apr 8, 2008 |
| Priority date | — |
| Expiry date | Apr 14, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/2257
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A semiconductor optical converter for use principally in an optical communications system or an optical information processing system.The semiconductor optical converter comprises an n-InP clad layer (12), an optical waveguide layer (13), an SI-InP clad layer (14), and an n-InP clad layer (15) formed sequentially on an SI-InP substrate (11), characterized in that a voltage is applied from an electrode (16) connected with the n-InP clad layer (15) and a ground electrode (17) connected with the n-InP clad layer (12).The semiconductor optical converter is especially applicable as a semiconductor phase modulator or a semiconductor Mach-Zehnder phase modulator operating at low voltages and having a low waveguide loss.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.