High temperature CW operation of GaAs/AlGaAshigh barrier gain offset VCSELs

This is the authors' abstract. We don't add key points for this paper.

Greater than 150°C CW lasing is achieved from an unbonded GaAs/AlGaAs VCSEL by employing high barrier confinement spacers and by blue shifting the optical gain. This is done while maintaining a variation in threshold current of only ±0.93 mA over a range greater than 150°C. These results are compared to a low barrier VCSEL of similar design.