Transmission type high-absorption optical modulator and method of manufacturing the same
US9417468B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 2, 2015 |
| Grant date | Aug 16, 2016 |
| Priority date | — |
| Expiry date | Apr 2, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/108
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided are a transmission type high-absorption optical modulator and a method of manufacturing the transmission type high-absorption optical modulator. The optical modulator includes: a substrate; a lower distributed Bragg reflector (DBR) layer on the substrate; a lower clad layer on the lower DBR layer; an active layer that is formed on the lower clad layer and includes a quantum well layer and a quantum barrier layer; an upper clad layer on the active layer; an upper DBR layer on the upper clad layer; and a doping layer that supplies carriers to the quantum well layer. In the optical modulator, the doping layer may be included in the quantum barrier layer or in at least one of the upper and lower clad layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.