Vertical cavity top surface emitting lasers in the 0.66µm visible spectral region were fabricated by the metal-organic chemical vapour deposition technique. The continuous wave threshold currents I th are 3.9 and 4.6 mA at -75 and -25°C, respectively, for 15µm diameter devices. The lasers can also be operated at room temperature, but only in a pulsed mode with an I th of 12 mA at 25°C.
- Chemical vapour deposition
- Semiconductor lasers