Optical spectroscopy and efficient continuous-wave operation near 2 mu m 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 Tom A Brown, W. Sibbett

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44 Citations (Scopus)

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+ I-5(7)-> I-5(8) transition and lifetime of the I-5(7) excited state were determined to be 4.8x10(-20) cm(2) 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.

Original languageEnglish
Pages (from-to)321-326
Number of pages6
JournalApplied Physics B: Lasers and Optics
Volume97
Issue number2
DOIs
Publication statusPublished - Oct 2009

Keywords

  • YAG
  • LUMINESCENCE
  • TEMPERATURE
  • MANIFOLDS
  • 2-MU-M
  • ENERGY
  • YLF

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