Optical semiconductor device having semiconductor laser and phot

Details Optical semiconductor device having semiconductor laser and phot Optical semiconductor device having semiconductor laser and phot

1992-09-11

1994-01-25

James, Andrew J.

Active solid-state devices (e.g., transistors, solid-state diode

Incoherent light emitter structure

In combination with or also constituting light responsive...

257 98, 257 79, 257432, 257466, H01L 3300, H01L 3112, H01L 3116

Patent

active

052818292

ABSTRACT:
An optical semiconductor device includes a semiconductor laser buried with a current blocking layer, and a photodetector, such as a phototransistor, which are provided on a semiconductor substrate. In such a device, the photodetector has the same thickness and composition as those of the current blocking layer, and a groove is provided in the semiconductor substrate to define an emitting end surface of the semiconductor laser and a light detection surface of the photodetector opposed to each other.

REFERENCES:
patent: 4366492 (1982-12-01), Kitamura
patent: 4794609 (1988-12-01), Hara et al.

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