Applied Physics B

, 97:321

Optical spectroscopy and efficient continuous-wave operation near 2 μm for a Tm, Ho:KYW laser crystal

  • A. A. Lagatsky
  • F. Fusari
  • S. V. Kurilchik
  • V. E. Kisel
  • A. S. Yasukevich
  • N. V. Kuleshov
  • A. A. Pavlyuk
  • C. T. A. Brown
  • W. Sibbett
Article

DOI: 10.1007/s00340-009-3698-2

Cite this article as:
Lagatsky, A.A., Fusari, F., Kurilchik, S.V. et al. Appl. Phys. B (2009) 97: 321. doi:10.1007/s00340-009-3698-2

Abstract

The growth, spectroscopy and lasing performance of a novel Tm, Ho:KY(WO4)2 crystal are reported. The peak emission cross-section of the Ho3+5I75I8 transition and lifetime of the 5I7 excited state were determined to be 4.8×10−20 cm2 and 1.8 ms, respectively, in a spectral range at around 2060 nm. Using a Ti:sapphire laser as a pump source at 802 nm, a maximum slope efficiency of up to 44% has been achieved with a corresponding output power of 460 mW at 2056 nm during continuous-wave operation of a Tm, Ho:KY(WO4)2 laser at room temperature. A tuning range of 1890–2080 nm has been demonstrated.

PACS

42.70.Hj42.60.Lh

Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  • A. A. Lagatsky
    • 1
  • F. Fusari
    • 1
  • S. V. Kurilchik
    • 2
  • V. E. Kisel
    • 2
  • A. S. Yasukevich
    • 2
  • N. V. Kuleshov
    • 2
  • A. A. Pavlyuk
    • 3
  • C. T. A. Brown
    • 1
  • W. Sibbett
    • 1
  1. 1.School of Physics and AstronomyUniversity of St. AndrewsSt. AndrewsUK
  2. 2.Institute for Optical Materials and TechnologiesBelarus National Technical UniversityMinskBelarus
  3. 3.Institute of Inorganic ChemistrySiberian Branch of Russian Academy of SciencesNovosibirskRussia