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.
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering