Stacked semiconductor laser diode

摘要

The present invention relates to an arrangement of semiconductor diode lasers stacked on top of one another, which is arranged on a substrate ( 1 ). A first diode laser ( 12 ) is arranged on the substrate ( 1 ), and a second diode laser ( 13 ) is arranged on the first diode laser ( 12 ). Between the first diode laser ( 12 ) and the second diode laser ( 13 ) there is a contact layer ( 6 ). The contact layer ( 6 ) comprises a first conductive layer ( 18 ) of a first conduction type and a second conductive layer ( 20 ) of a second conduction type and an interlayer ( 19 ) which is arranged between the first and second conductive layers ( 18, 20 ).