Different influences of u-InGaN upper waveguide on the performance of GaN-based blue and green laser diodes |
(color online) Schematic structure of GaN-based blue and green LDs with u-InGaN UWG. [Si]: doping level of Si. [Mg]: doping level of Mg. CL: cladding layer. LWG: lower waveguide. UWG: upper waveguide. EBL: electron blocking layer. |