Chinese Optics Letters, Volume. 3, Issue 12, 12701(2005)

Effect of Fe impurity on the optical loss of Nd-doped phosphate laser glass

Yongchun Xu, Shunguang Li, Lili Hu, and Wei Chen
Author Affiliations
  • Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
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    The optical loss coefficient at 1053-nm wavelength, influenced by Fe ions in N31-type Nd-doped phosphate laser glass, was determined precisely and analyzed in detail. It is found that the optical loss coefficient per unit of Fe concentration (cm^(-1)/ppmw) increases with Fe concentration in the range of 0---300 ppmw, but it approaches a constant as the Fe concentration is larger than 300 ppmw. Such a concentration effect is due to a shift in the redox equilibrium between Fe3+ and Fe2+ ions in the glass. The effect of oxygen pressure, temperature, and variable valence states of other metal ions in glass samples on the optical loss is also discussed.

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    Yongchun Xu, Shunguang Li, Lili Hu, Wei Chen. Effect of Fe impurity on the optical loss of Nd-doped phosphate laser glass[J]. Chinese Optics Letters, 2005, 3(12): 12701

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    Paper Information

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    Received: May. 31, 2005

    Accepted: --

    Published Online: Jun. 6, 2006

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