Red microchip VECSEL array

J.E. Hastie, L.G. Morton, S. Calvez, M.D. Dawson, T. Leinonen, M. Pessa, G. Gibson, M.J. Padgett

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


We report an InGaP/AlInGaP/GaAs microchip vertical-external-cavity surface emitting laser operating directly at red wavelengths and demonstrate its potential for array-format operation. Optical pumping with up to 3.3W at 532nm produced a maximum output power of 330mW at 675nm, in a single circularly-symmetric beam with M2<2. Simultaneous pumping with three separate input beams, generated using a diffractive optical element, achieved lasing from three discrete areas of the same chip. Output power of ~95mW per beam was obtained from this 3×1 array, each beam having a Gaussian intensity profile with M2<1.2. In a further development, a spatial light modulator allowed computer control over the orientation and separation of the pump beams, and hence dynamic control over the configuration of the VECSEL array.
Original languageEnglish
Pages (from-to)7209-7214
Number of pages5
JournalOptics Express
Issue number18
Publication statusPublished - 2005


  • lasers
  • laser optics
  • visible lasers
  • optoelectronics
  • photonics


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