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Efficient diode-pumped Tm:YALO3 laser with a pump recycling scheme

  • Bao Quan Yao*
  • , Yu Feng Li
  • , Yue Zhu Wang
  • , Xiao Ming Duan
  • , Guang Jun Zhao
  • , Yan Hua Zong
  • , Jun Xu
  • *Corresponding author for this work
  • Harbin Institute of Technology
  • CAS - Shanghai Institute of Optics and Fine Mechanics

Research output: Contribution to journalArticlepeer-review

Abstract

By using a pump recycling configuration, the maximum power of 8.1 W in the wavelength range 1.935-1.938 μm is generated by a 5-mm long Tm:YAlO 3 (4 at.%) laser operating at 18°C with a pump power of 24 W. The highest slope efficiency of 42% is attained, and the pump quantum efficiency is up to 100%. The Tm:YAlO3 laser is employed as a pumping source of singly-doped Ho(1%):GdVO4 laser operating at room temperature, in which continuous wave output power of greater than 0.2 W at 2.05 μm is achieved with a slope efficiency of 9%.

Original languageEnglish
Pages (from-to)2597-2599
Number of pages3
JournalChinese Physics Letters
Volume24
Issue number9
DOIs
StatePublished - 1 Sep 2007

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