Fast electrical complete turn-off optical device
US5652439A · kind A · utility
9Cited by
5References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 8, 1995 |
| Grant date | Jul 29, 1997 |
| Priority date | — |
| Expiry date | Sep 8, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/813
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The invention relates generally to optoelectronic pnpn devices and more particularly to a layer structure suitable for fast electrical complete turn-off of such devices and to a method for efficient and fast operation of such devices and differential pairs of such devices. The devices have four layers and three junctions, and the invention provides for complete depletion of both center layers. The differential pair of pnpn devices also provides a very sensitive optical receiver which combines a very high cycle frequency with a very high optical sensitivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.