Semiconductor device for processing electro-magnetic radiation

Details Semiconductor device for processing electro-magnetic radiation Semiconductor device for processing electro-magnetic radiation

1984-03-30

1987-03-24

Davie, James W.

Coherent light generators

Particular active media

Semiconductor

357 17, 372 45, 372 48, H01S 319

Patent

active

046530576

ABSTRACT:
A semiconductor device for producing or amplifying electromagnetic radiation, more particularly a semiconductor laser, has a substrate which has a mesa-shaped raised portion. On either side of the mesa there is located a blocking layer of a conductivity type opposite to that of the substrate. On the blocking layer are formed a first passive layer of the same conductivity type as the substrate, an active layer and a second passive layer of a conductivity type opposite to that of the substrate. According to the invention, the blocking layer also extends over the mesa, which is connected by diffusion from at least the first passive layer to the blocking layer.

REFERENCES:
patent: 4404730 (1983-09-01), Heimen

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