TY - GEN
T1 - Power scaling and heat management in high-power VECSELs
AU - Chatterjee, S.
AU - Chernikov, A.
AU - Herrmann, J.
AU - Scheller, M.
AU - Koch, M.
AU - Kunert, B.
AU - Stolz, W.
AU - Koch, S. W.
AU - Wang, T. L.
AU - Kaneda, Y.
AU - Yarborough, J. M.
AU - Hader, J.
AU - Moloney, J. V.
PY - 2011
Y1 - 2011
N2 - Many applications of vertical-external-cavity surface-emitting lasers (VECSELs) [1], such as intra-cavity frequency mixing rely on the high-power characteristics of the devices. Generally, overheating limits any lasers performance and, thus, efficient cooling concepts are crucial for the high-power output [2]. Here, we experimentally investigate the thermal properties of a high-power device, focusing on the generation, distribution and removal of excess heat under extreme pumping conditions. Different heat-spreading and heat-transfer approaches are analyzed. The performance of the device is optimized yielding a maximum emitted power beyond 70W from a single spot. Finally, the potential for power-scaling in VECSELs and its restrictions are examined. Details on the chip and the experimental setup are given in [3].
AB - Many applications of vertical-external-cavity surface-emitting lasers (VECSELs) [1], such as intra-cavity frequency mixing rely on the high-power characteristics of the devices. Generally, overheating limits any lasers performance and, thus, efficient cooling concepts are crucial for the high-power output [2]. Here, we experimentally investigate the thermal properties of a high-power device, focusing on the generation, distribution and removal of excess heat under extreme pumping conditions. Different heat-spreading and heat-transfer approaches are analyzed. The performance of the device is optimized yielding a maximum emitted power beyond 70W from a single spot. Finally, the potential for power-scaling in VECSELs and its restrictions are examined. Details on the chip and the experimental setup are given in [3].
UR - https://www.scopus.com/pages/publications/80052278052
UR - https://www.scopus.com/pages/publications/80052278052#tab=citedBy
U2 - 10.1109/CLEOE.2011.5942637
DO - 10.1109/CLEOE.2011.5942637
M3 - Conference contribution
AN - SCOPUS:80052278052
SN - 9781457705335
T3 - 2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011
BT - 2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011
T2 - 2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011
Y2 - 22 May 2011 through 26 May 2011
ER -