Applied Physics B

, Volume 120, Issue 1, pp 123–128 | Cite as

Ho:KLuW microchip laser intracavity pumped by a diode-pumped Tm:KLuW laser

  • J. M. Serres
  • P. A. Loiko
  • X. Mateos
  • K. V. Yumashev
  • N. V. Kuleshov
  • V. Petrov
  • U. Griebner
  • M. Aguiló
  • F. Díaz


A compact intracavity-pumped microchip Ho laser is realized using stacked Tm:KLuW/Ho:KLuW crystals pumped by a laser diode at 805 nm; both crystals are cut for light propagation along the N g optical indicatrix axis and emit with polarization along the N m axis. Maximum CW output power of 285 mW is achieved at a wavelength of 2080 nm for 5.6 W absorbed pump power in the Tm:KLuW crystal with a maximum slope efficiency of 8.3 %. Maximum total (Tm3+ and Ho3+ emission) output of 887 mW with a slope efficiency of 23 % is achieved. Laser operation is obtained in the 1867–1900 nm spectral range corresponding to the Tm emission, while Ho emits at 2078–2100 nm, depending on the output coupling. The microchip Ho laser generates a near-circular output beam with M 2 < 1.1. The compact laser setup with plane–plane cavity provides automatic mode-matching condition for the Tm and Ho laser modes.


Thermal Lens Slope Efficiency Absorb Pump Power Microchip Laser Optical Indicatrix 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  • J. M. Serres
    • 1
  • P. A. Loiko
    • 1
    • 2
  • X. Mateos
    • 1
  • K. V. Yumashev
    • 2
  • N. V. Kuleshov
    • 2
  • V. Petrov
    • 3
  • U. Griebner
    • 3
  • M. Aguiló
    • 1
  • F. Díaz
    • 1
  1. 1.Física i Cristal·lografia de Materials i Nanomaterials (FiCMA-FiCNA)Universitat Rovira i Virgili (URV)TarragonaSpain
  2. 2.Center for Optical Materials and TechnologiesBelarusian National Technical UniversityMinskBelarus
  3. 3.Max Born Institute for Nonlinear Optics and Short Pulse SpectroscopyBerlinGermany

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