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Optical device with low electrical and thermal resistance bragg reflectors

United States Patent

*** EXPIRED ***
5,568,499
October 22, 1996
View the Complete Patent at the US Patent & Trademark Office
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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.
Lear; Kevin L. (Albuquerque, NM)
Sandia Corporation (Albuquerque, NM)
08/ 418,730
April 7, 1995
This invention was made with Government support under Contract No. DE-AC04-94AL85000 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.