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Volume 28 Issue 6
Sep.  2013
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Article Navigation >  LASER TECHNOLOGY  > 2004 >  28(6): 633-635

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Calculating the absorption efficiency of double-clad fiber based on the theory of boundary reflection

  • 1.

    School of Communication and Information Engineering, Shanghai University, Shanghai 200072, China

  • Received Date: 2003-10-23
    Accepted Date: 2003-11-26
  • The theory of boundary reflection is used for arbitrary dots in the interface of the first and second cladding of double-clad fiber (DCF) to confirm the area where the light source emits the rays that can be absor bed by the RE-doped core.Then the absorption efficiency of the dot will be obtained if this area is compared with the whole area of the first cladding.In order to calculate the whole absorption efficiency of DCF,the absorption efficiency of every dot in the interface of the first and second cladding of DCF should be calculated and synthesized.The conclusions of absorption efficiency of circular DCF and offset DCF completely accord with the results calculated by another ray method.However the process of this method is very handy.
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  • [1]

    ZENTENO L.High-power double-clad fiber lasers[J].Journal of Lightwave Technology,1993,11(9):1435～1446.
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    DOMINIC V,MacCORMACK S,WAARTS R et al.110W fibre laser[J].Electron Lett,1999,35(14):1158～1160.
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    BEDO S,LUTHY W,WEBER H P.The effective absorption coefficient in double-clad fibres[J].Opt Commun,1993,99:331～335.
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    LIU A,UEDA K.The absorption characteristics of circular,offset,and rectangular double-clad fibers[J].Opt Commun,1996,132:511～518.
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    DOYA V,LEGRAND O,MORTESSAGNE F.Optimized absorption in a chaotic double-clad amplifier[J].Opt Lett,2001,26(10):872～874.
    [6] 吴彝尊,蒋佩璇,李铃 et al.光纤通信基础[M].北京:人民邮电出版社,1987.54～55.
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通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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Calculating the absorption efficiency of double-clad fiber based on the theory of boundary reflection

  • 1. School of Communication and Information Engineering, Shanghai University, Shanghai 200072, China
  • Received Date: 2003-10-23
  • Accepted Date: 2003-11-26
  • Available Online: 2004-11-25

Abstract: The theory of boundary reflection is used for arbitrary dots in the interface of the first and second cladding of double-clad fiber (DCF) to confirm the area where the light source emits the rays that can be absor bed by the RE-doped core.Then the absorption efficiency of the dot will be obtained if this area is compared with the whole area of the first cladding.In order to calculate the whole absorption efficiency of DCF,the absorption efficiency of every dot in the interface of the first and second cladding of DCF should be calculated and synthesized.The conclusions of absorption efficiency of circular DCF and offset DCF completely accord with the results calculated by another ray method.However the process of this method is very handy.

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