Patent ID: 7701991

Claim:
A semiconductor light emitting device, comprising an active region with barriers and no more than three quantum wells constructed from various ratios of aluminum, gallium, indium and arsenic with the quantum wells being sized between 5 nm and 8 nm and the conduction energy levels between barriers and the quantum wells being between 120 meV and 200 meV, wherein the active region is placed between two confining layers of opposite conductive doping where p-doped confining layers start with a concentration of 5×10 16 cm- 3 −25%/+50% and increase to a final concentration of 1×10 17 cm- 3 , −25%+50%, and a interface layer that immediately follows the p-doped confining layers has a fixed doping concentration which is between the final doping concentration of the confining layers and 1×10 18 cm −3 , +300%.