Applied Physics B

, Volume 102, Issue 4, pp 789–794 | Cite as

Short wavelength red-emitting AlGaInP-VECSEL exceeds 1.2 W continuous-wave output power

  • T. SchwarzbäckEmail author
  • M. Eichfelder
  • W.-M. Schulz
  • R. Roßbach
  • M. Jetter
  • P. Michler


We present a vertical external cavity surface-emitting laser system based on a multi-quantum-well structure with 20 compressively strained GaInP quantum wells for an operation wavelength of around 665 nm with a monolithic integrated distributed Bragg reflector. With the help of an intra-cavity diamond heatspreader the laser operates in continuous-wave mode. Operation with a TEM00 Gaussian beam profile and a beam propagation factor of M 2≤1.05 is shown as well as a high resolution spectrum of the laser line, which shows the etalon effect of the diamond. The laser can be operated at a maximum output power exceeding 1.2 W with a slope efficiency of η diff=18%. At maximum output power the wavelength of the laser resonance is at 670 nm, which is shortest reported until now at powers exceeding 1 W. By rotating a birefringent filter in an extended folded cavity arrangement a wavelength tuning of 21 nm was attained.


Output Power Gaussian Beam Maximum Output Power Output Coupler Wavelength Tuning 
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Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • T. Schwarzbäck
    • 1
    Email author
  • M. Eichfelder
    • 1
  • W.-M. Schulz
    • 1
  • R. Roßbach
    • 1
  • M. Jetter
    • 1
  • P. Michler
    • 1
  1. 1.Institut für Halbleiteroptik und Funktionelle Grenzflächen and Research Center SCoPEUniversity of StuttgartStuttgartGermany

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