Patent ID: 6556602
Filing Date: 2003-04-29
Classification: H01J,H01S

Abstract:
A semiconductor laser screen comprising:a carrier; an output mirror affixed to said carrier, said output minor comprised of a plurality of alternating layers of a first Ga1-xAlxAs composition and a second Ga1-xAlxAs composition; a multi quantum well active gain region on said output mirror, said multi quantum well active gain region comprising a plurality of gain regions of GaInP separated by barrier layers of (Al1-xGa1-x)InP for lasing in the red spectrum; an etch stop layer of (Ga1-xAlx)yIn1-yP on said multi quantum well active gain region opposite said output mirror; and a metallic mirror on said etch stop layer which cooperates with said output minor to define a laser cavity, said metallic mirror capable of permitting electrons to penetrate therethrough in order to pump the gain regions of said multi quantum well active gain region, wherein said multi quantum well active gain region is in direct contact with at least one of said output minor and said etch stop layer.