The use of crystalline heatspreaders to improve thermal management in optically pumped vertical-external-cavity surface-emitting lasers is studied via finite-element analysis. The required properties of a heatspreader are examined and the effect on heat flow is discussed, as are thermal lensing effects. The advantages of diamond heatspreaders are highlighted. The power-scaling potential is compared to other approaches. Heatspreaders are found to be promising, particularly for use with low thermal conductivity semiconductors.
- quantum electronics
- finite element analysis
Kemp, A., Valentine, G. J., Hopkins, J. M., Hastie, J. E., Smith, S. A., Calvez, S., ... Burns, D. (2005). Thermal management in vertical-external-cavity surface-emitting lasers: Finite-element analysis of a heatspreader approach. IEEE Journal of Quantum Electronics, 41(2), 148-155. https://doi.org/10.1109/JQE.2004.839706