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 6

Plot of reflectivity versus wavelength for the top DBR mirror system of the designed bottom 980 nm VCSEL. 19 pairs of GaAs/Al0.8 Ga0.2 As gave 0.994 reflectivity.