SURFACE EMITTING SEMICONDUCTOR LASER, SURFACE EMITTING SEMICONDUCTOR LASER DEVICE, OPTICAL TRANSMISSION DEVICE, AND INFORMATION PROCESSING APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a highly reliable surface emitting semiconductor laser with a long resonator.SOLUTION: A surface emitting semiconductor laser (VCSEL) 10 with a long resonator includes: a semi-insulating i-type GaAs substrate 100; a lower part DBR 102 comprising semi-insulating i-type AlGaAs; a semi-insulating i-type AlGaAs layer 110; a contact layer 112 comprising an n-type GaInP; an active region 114; a current constriction layer 120 comprising a p-type AlAs; an upper part DBR 106 comprising a p-type AlGaAs; a p-side electrode 130 formed on an apex of a mesa M; and an n-side electrode 140 electrically connected to the contact layer 112 exposed at a bottom of the mesa M.SELECTED DRAWING: Figure 1