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 2

Values of the refractive indices of different layers of the integrated optically pumped 1550 top emitting and electrically pumped 980 nm bottom emitting VCSELs.