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Thermal Management of Vertical External Cavity Surface Emitting Laser Grown on GaAs Substrate | ||
| Iraqi Journal of Applied Physics | ||
| Article 1, Volume 13, Issue 2, 2017, Pages 15-18 | ||
| Author | ||
| G. Balluo | ||
| Abstract | ||
| In a VECSELs, it seems that most of the heat comes from the pumping mechanism which is the external laser that is exciting the active medium. The pump photons have higher energy than the emitted photons and thus the energy difference is dissipated as heat in the active medium. As the temperature increases in the active medium the excited carriers star escaping the quantum wells until the laser gain is depleted and the power output decreases. Thermal management is crucial for VECSEL power performance and it is usually addressed by using heat spreader plates and heat sinks as will be explained next. | ||
| Keywords | ||
| VECSEL; semiconductor laser; Thermal management; Quantum devices | ||
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