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 8

Plot of reflectivity versus wavelength for the 980 nm DBR mirror system placed on top of the designed top 1550 nm VCSEL section. 28 pairs of GaAs/Al0.8Ga0.2As gave 0.994 reflectivity.