Research Article

Integrated Duo Wavelength VCSEL Using an Electrically Pumped GaInAs/AlGaAs 980 nm Cavity at the Bottom and an Optically Pumped GaInAs/AlGaInAs 1550 nm Cavity on the Top

Figure 14

Plot of threshold pump power versus the number of quantum wells for the designed 1550 nm electrically pumped VCSEL showing threshold pump power minimum using three quantum wells.