High thermal conductivity intra-cavity crystalline heatspreaders are used to control the pump-induced temperature increase limiting the power scaling of vertical external-cavity surface-emitting lasers (VECSELs). Pump-power-limited output of greater than 0.4 W was achieved from a GaAs-based VECSEL at room temperature with the use of a silicon carbide heatspreader bonded to the surface of the gain element and 0.5 W by water-cooling the system to 7.5°C.
|Title of host publication||International Conference on Lasers, Applications, and Technologies 2002: Advanced Lasers and Systems|
|Place of Publication||Bellingham|
|Number of pages||6|
|Publication status||Published - 6 Oct 2003|
- silicon carbide heatspreader