Optical device with low electrical and thermal resistance bragg reflectors
US5568499A · kind A · utility
138Cited by
13References
34Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 7, 1995 |
| Grant date | Oct 22, 1996 |
| Priority date | — |
| Expiry date | Apr 7, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/3211
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A compound-semiconductor optical device and method. The optical device is provided with one or more asymmetrically-graded heterojunctions between compound semiconductor layers for forming a distributed Bragg reflector mirror having an improved electrical and thermal resistance. Efficient light-emitting devices such as light-emitting diodes, resonant-cavity light-emitting diodes, and vertical-cavity surface-emitting lasers may be formed according to the present invention, which may be applied to the formation of resonant-cavity photodetectors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.