A novel approach for improved green-emitting II-VI lasers

New concepts to improve the performance of green-emitting laser diodes, based on the ZnSe system, are presented. The benefits of implantation-induced disordering (IID) and a novel alleged contact structure are discussed. Using IID, index-guided lasers with low thresholds are fabricated. The introduction of Li/sub 3/N-containing contacts leads to an acceptor indiffusion resulting in an increased p-type doping level and thereby extremely reduced turn-on voltages, threshold current densities, increased wall-plug efficiencies, and extended continuous-wave lifetimes.