Multichip vertical-external-cavity surface-emitting lasers: A coherent power scaling scheme

Li Fan, Mahmoud Fallahi, Jörg Hader, Aramais R. Zakharian, Jerome V. Moloney, James T. Murray, Robert Bedford, Wolfgang Stolz, Stephan W. Koch

Research output: Contribution to journalArticle

30 Scopus citations


We propose an efficient coherent power scaling scheme, the multichip vertical-external-cavity surfaceemitting 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.

Original languageEnglish (US)
Pages (from-to)3612-3614
Number of pages3
JournalOptics letters
Issue number24
StatePublished - Dec 15 2006


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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