Laser Physics

, Volume 22, Issue 2, pp 455–460 | Cite as

Optical properties of Tm, Mg:LiTaO3 laser crystal

  • J. Gong
  • C. C. Zhao
  • J. G. Yin
  • P. C. Hu
  • X. M. He
  • Y. Hang
Novel Laser Materials

Abstract

A Tm, Mg co-doped LiTaO3 crystal has been grown by Czochralski method. Room temperature polarized absorption spectra and fluorescence spectrum of the Tm, Mg:LiTaO3 crystal were measured and analyzed. The maximum absorption cross-section is 6.0791 × 10−20 cm2 at around 790 nm with full width at half maximum of 5 nm. The emission cross-section of 3F4 manifold was 2.2 × 10−20 cm2. The spectroscopic parameters of Tm3+ ion were calculated by applying the Judd-Ofelt approach, and the intensity parameters Ω2, Ω4, and Ω6 were obtained to be 7.71 × 10−20, 1.09 × 10−20, and 1.16 × 10−20 cm2, respectively. The branching ratios and radiative lifetimes were also presented and the radiative lifetime of Tm3+3F43H6 transition is 968.3 μs. The results were also analyzed and compared with other Tm3+ doped hosts.

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Copyright information

© Pleiades Publishing, Ltd. 2012

Authors and Affiliations

  • J. Gong
    • 1
    • 2
  • C. C. Zhao
    • 1
    • 2
  • J. G. Yin
    • 1
    • 2
  • P. C. Hu
    • 1
    • 2
  • X. M. He
    • 1
  • Y. Hang
    • 1
  1. 1.Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghaiChina
  2. 2.Graduate School of Chinese Academy of SciencesBeijingChina

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