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High temperature CW operation of GaAs/AlGaAs high barrier gain offset VCSELs

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6 Author(s)

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

Published in:

Electronics Letters  (Volume:30 ,  Issue: 25 )