High-power InAs quantum dot VECSEL with fundamental mode emission at 1.5 µm (Conference Presentation)

Vertical-external-cavity surface-emitting lasers employing QDs as gain media in comparison to QW-based VECSELs can offer beneficial lasing features, such as, temperature resilience, broadband gain and wider wavelength tunability. We demonstrate the first QD-based VECSEL providing 2 W emission at 1.5 µm and a tuning range of 60 nm. This achievement paves the way to multi-Watt VECSELs with extended wavelength tunability.