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Absorption efficiency of graded-index double-clad fiber lasers

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Journal of Shanghai University (English Edition)

Abstract

Absorption efficiency of graded-index double-clad fiber lasers or amplifiers is analyzed. As ray optics method is no longer valid for graded-index case, the mode analysis method is used. Calculated results show that absorption efficiency for a graded-index is higher than that for a step-index in symmetric case. In offset core case, the graded-index can achieve the same absorption efficiency with much smaller offset distance. Absorption efficiencies for different graded-index profiles of the inner cladding are compared.

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Authors and Affiliations

  1. School of Communication and Information Engineering, Shanghai University, 200072, Shanghai, P. R. China

    Wang Zi-hua (Prof.), Zhang Hui & Xiao Zhong-yin

Authors
  1. Wang Zi-hua
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  2. Zhang Hui
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  3. Xiao Zhong-yin
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Additional information

Project supported by National Natural Science Foundation of China (Grant No. 60277025), Preliminary Defence Research Foundation(Grant No.51437080204QT0601), and Shanghai Leading Academic Discipline Project (Grant No.T0102)

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Wang, Zh., Zhang, H. & Xiao, Zy. Absorption efficiency of graded-index double-clad fiber lasers. J. of Shanghai Univ. 10, 44–47 (2006). https://doi.org/10.1007/s11741-006-0103-9

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  • DOI: https://doi.org/10.1007/s11741-006-0103-9

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