12 µm long edge-emitting quantum-dot laser

Abstract
Highly reflecting Bragg mirrors in combination with GaInAs/AlGaAs laser structures with two layers of self-organised GaInAs quantum-dots are used to realise CW-operating edge-emitting microlasers with cavity lengths down to 12 µm. Owing to the large spacing of the longitudinal modes of 8.2 nm for 12 µm long lasers, quasi-singlemode operation is obtained.