Light-emitting device

Details Light-emitting device Light-emitting device

1990-07-20

1992-05-19

Davie, James W.

Coherent light generators

Particular component circuitry

Optical pumping

372 23, 372 45, 372 46, 372 50, H01L 3300

Patent

active

051152843

ABSTRACT:
A light-emitting device having a first clad layer on a substrate, and a first active layer for light emission by current injection, a second clad layer constituting a first heterogeneous structure with the first active layer and first clad layer, a second active layer for light emission by current injection, a third clad layer constituting a second heterogeneous structure with the second active layer and second clad layer, all formed in concentric manner around the first clad layer, and an electrode for supplying the first and second active layers with electric currents, thereby emitting lights from the first and second active layers by current injection.

REFERENCES:
patent: 4747110 (1988-05-01), Takahashi et al.
patent: 4912533 (1990-03-01), Takahashi

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