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2004 Volume 13 Issue 10
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Huang Li-Lei, Cao Guo-Xi, Zhang Lun, Luo Hong-Lei. 2004: Analysis of the laser performance of Tm3+: ZBLAN glass at 1.47μm wavelength, Chinese Physics B, 13(10): 1728-1732.
Citation: Huang Li-Lei, Cao Guo-Xi, Zhang Lun, Luo Hong-Lei. 2004: Analysis of the laser performance of Tm3+: ZBLAN glass at 1.47μm wavelength, Chinese Physics B, 13(10): 1728-1732.
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Analysis of the laser performance of Tm3+: ZBLAN glass at 1.47μm wavelength

  • Optoelectronic Division, China Institute of Metrology, Hangzhou 310034, China

  • Shanghai Institute of Optics & Fine Mechanics, Chinese Academia of Sciences, Shanghai 201800, China

  • Available Online: 30/10/2004
  • Fund Project: the Natural Science Foundation of Zhejiang Province, China (Grant 600087)
  • A formula for the threshold energy of a four-level-system laser in Tm3+ doped fluoride glass is derived. The formula contains the parameters of the interaction between the ions and the up-conversion rate of the pump-light. It is discussed that the Tb3+ ions and the up-conversion pump-light have an influence on the laser performance of Tm3+ ions around 1.47μm wavelength. We draw the following two conclusions. (1) The laser threshold descends obviously due to the doping of Tb3+ ions, but the descending gradually flattens out with the increase of the content of Tb3+ ions. Its suitable content is (1-2)× 1020cm-3. (2) When pump-lights both from the up-conversion and from the ground state excite simultaneously the single-doped Tm3+ ions, the threshold energy can reduce and the output energy can increase. In this paper, the energy conversion efficiency from the up-conversion pump-light to the output energy of laser is estimated.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Analysis of the laser performance of Tm3+: ZBLAN glass at 1.47μm wavelength

  • Available Online: 30/10/2004

Abstract: A formula for the threshold energy of a four-level-system laser in Tm3+ doped fluoride glass is derived. The formula contains the parameters of the interaction between the ions and the up-conversion rate of the pump-light. It is discussed that the Tb3+ ions and the up-conversion pump-light have an influence on the laser performance of Tm3+ ions around 1.47μm wavelength. We draw the following two conclusions. (1) The laser threshold descends obviously due to the doping of Tb3+ ions, but the descending gradually flattens out with the increase of the content of Tb3+ ions. Its suitable content is (1-2)× 1020cm-3. (2) When pump-lights both from the up-conversion and from the ground state excite simultaneously the single-doped Tm3+ ions, the threshold energy can reduce and the output energy can increase. In this paper, the energy conversion efficiency from the up-conversion pump-light to the output energy of laser is estimated.

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