TTG-DFB laser diode

Details TTG-DFB laser diode TTG-DFB laser diode

1992-04-23

1993-06-22

Epps, Georgia Y.

Coherent light generators

Particular beam control device

Tuning

372 96, 372 46, H01S 310, H01S 308

Patent

active

052220877

ABSTRACT:
A TTG-DFB laser diode on a doped substrate having a stripe-shaped layer structure that has an intermediate layer between an active layer and a tuning layer. A confinement layer laterally adjoins this layer structure at both sides, is doped for the same conductivity type as the substrate and is electrically conductively connected to the substrate through an interruption of the layers situated therebelow. An upper region, that respectively extends up to the surface and that is oppositely doped, is formed in the confinement layer above the layer structure. A lateral region, separated therefrom and that is electrically conductively connected via a lower confinement layer to a side of the layer structure facing toward the substrate, is formed in the confinement layer. Contact layers and contacts are applied on the upper region and on the lateral region, and a contact is applied on the substrate, so that separate current injection into both the active layer and the tuning layer is possible through the intermediate layer.

REFERENCES:
patent: 5008893 (1991-04-01), Amann et al.
patent: 5048049 (1991-09-01), Amann
patent: 5101414 (1992-03-01), Schilling et al.

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