Semiconductor optical devices and methods of fabricating the same
US8804232B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2011 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Jan 30, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2301/16
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A semiconductor optical device includes a first mode converting core, a light amplification core, a second mode converting core, and a light modulation core disposed in a first mode converting region, a light amplification region, a second mode converting region, and a light modulating region of a semiconductor substrate, respectively, and a current blocking section covering at least sidewalls and a top surface of the light amplification core. The first mode converting core, the light amplification core, the second mode converting core, and the light modulation core are arranged along one direction in the order named, and are connected to each other in butt joints. The current blocking section includes first, second, and third cladding patterns sequentially stacked. The second cladding pattern is doped with dopants of a first conductivity type, and the first and third cladding patterns are doped with dopants of a second conductivity type.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.