Multichip vertical-external-cavity surface-emitting lasers: a coherent power scaling scheme |
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| Authors: | Fan Li Fallahi Mahmoud Hader Jörg Zakharian Aramais R Moloney Jerome V Murray James T Bedford Robert Stolz Wolfgang Koch Stephan W |
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| Institution: | College of Optical Sciences, University of Arizona, Tucson, Arizona 85721, USA. lifan@optics.arizona.edu |
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| Abstract: | We propose an efficient coherent power scaling scheme, the multichip vertical-external-cavity surface-emitting laser (VECSEL), in which the waste heat generated in the active region is distributed on multi-VECSEL chips such that the pump level at the thermal rollover is significantly increased. The advantages of this laser are discussed, and the development and demonstration of a two-chip VECSEL operating around 970 nm with over 19 W of output power is presented. |
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