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WANG Xu-de, ZHOU Zheng, LI Su-wen, JIANG En-hua. Self-similar pulse evolution in ytterbium doped fiber amplifiers[J]. LASER TECHNOLOGY, 2012, 36(1): 8-12. DOI: 10.3969/j.issn.1001-3806.2012.01.003
Citation: WANG Xu-de, ZHOU Zheng, LI Su-wen, JIANG En-hua. Self-similar pulse evolution in ytterbium doped fiber amplifiers[J]. LASER TECHNOLOGY, 2012, 36(1): 8-12. DOI: 10.3969/j.issn.1001-3806.2012.01.003
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Self-similar pulse evolution in ytterbium doped fiber amplifiers

  • School of Physics and Electronic Information, Huaibei Normal University, Huaibei 235000, China

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  • Received Date: March 27, 2011
  • Revised Date: April 19, 2011
  • Published Date: January 24, 2012
    Graphical Abstract
    • Abstract
  • In order to study the evolvement and transmission of a self-similar pulse in a high power ultra-short pulse generation system,the self-similar solutions of the nonlinear Schrdinger equation in ytterbium doped fiber amplifiers were analyzed theoretically.The influence of the initial pulse shape,the initial pulse width as well as gain coefficient and gain dispersion on the pulse self-similar evolution were numerically studied.It is shown that when the dispersion length is close to fiber length,the initial pulse can evolve into a parabolic pulse.Different kinds of initial pulses are all evolved into parabolic profiles with different evolutionary process.Larger gain coefficient is beneficial to generate self-similar parabolic pulse with high power and wide frequency range.The gain dispersion plays an important role in frequency filtering.
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    • References (11)
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