In-phase coherently-coupled optically-pumped VECSEL array

Alec C. Sills, Gavin N. West, Eryn A. Fennig, Mike P. Grimshaw, Matthew T. Johnson, Manoj Kanskar, Kent D. Choquette, Paul O. Leisher

Research output: Contribution to journalArticlepeer-review


We report on an optically pumped vertical-external-cavity surface-emitting laser array exhibiting coherent coupling. Imaging of the far field shows interference consistent with in-phase coherent coupling, and a majority of total power is present in the central on-axis lobe. The physical mechanism of operation is attributed to diffractive coupling, wherein a small portion of the light emitting from each emitter is shared with adjacent emitters of the array.

Original languageEnglish (US)
Article number6683040
Pages (from-to)430-432
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number5
StatePublished - Mar 1 2014


  • Coherent coupling
  • Diode lasers
  • VECSEL arrays

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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