PILZFOERMIGER STREIFEN-HALBLEITERLASER

PILZFOERMIGER STREIFEN-HALBLEITERLASER

A mushroom-shaped semiconductor stripe laser, particularly with transversal, monomode light distribution and a double heterostructure comprised of a substrate, a laser-active zone, a cover layer and an electrically contacting metal layer for the cover layer with the cover layer being underetched suc...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SCHLOSSER,EWALD, VOLLMER,HANS-PETER,DR.PHIL.NAT, MARSCHALL,PETER
Format: Patent
Sprache:ger
Schlagworte:
BASIC ELECTRIC ELEMENTS
DEVICES USING STIMULATED EMISSION
ELECTRICITY
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Beschreibung
Zusammenfassung:A mushroom-shaped semiconductor stripe laser, particularly with transversal, monomode light distribution and a double heterostructure comprised of a substrate, a laser-active zone, a cover layer and an electrically contacting metal layer for the cover layer with the cover layer being underetched such that a mushroom-shaped structure is formed in which the laser-active zone is constricted to a stripe-shaped region. The ratio of the width of the cover layer to the width of the laser-active zone lies in a range between two and five, and the cover layer is electrically conductively connected with the metal layer on its outer surface as well as on at least one of its side surfaces.