Patent ID: 6028878
Filing Date: 2000-02-22
Classification: H01S

Abstract:
Apparatus comprising a solid state laser device including first and second laser bars of opposite conductivity tapes, each of said first and second laser bars including N laser diodes therein, said apparatus also including a heat sink having an electrically-insulating surface layer thereon, said electrically-insulating surface layer having thereon N contact strips, corresponding diodes of said first and second laser bars being electrically connected to the same one of said contact strips, said apparatus also including an electrical circuit for selectively impressing a voltage across said corresponding diodes of said first and second diode arrays for simultaneously forward biasing a first diode of said first bar and reverse biasing the corresponding diode of said second bar--wherein said first laser bar has an n-type substrate and a p-type surface layer, said electrical insulating layer comprises aluminum oxide, and wherein said first and second laser bars include grooves therein through said surface layers for electrically isolating the diodes therein from one another.