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21 spatial mode erbium-doped fiber amplifier for mode division multiplexing transmission

机译:21空间模式掺铒光纤放大器,用于模式分割多路复用传输

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摘要

We experimentally demonstrate a 12-mode group (21 spatial mode) cladding-pumped few-mode erbium-doped fiber amplifier. The differential modal gain (DMG) is dramatically reduced by using the double cladding erbium-doped fiber (DC-EDF) with a refractive index trench structure, which helps to tightly confine all 21 spatial modes in the core and to mitigate the bending loss. Our experimental results show that the DMG gain is about 3 dB when the average signal modal gain for all 12 mode groups is up to 15 dB across the C-band. Our method of using a DC-EDF with a properly designed trench structure can be used to develop gain equalized few-mode amplifiers supporting more spatial modes. (c) 2018 Optical Society of America
机译:我们通过实验证明了一个12模式组(21个空间模式)包层泵浦的少量模式掺铒光纤放大器。 通过使用具有折射率沟槽结构的双包层掺铒光纤(DC-EDF),差动模态增益(DMG)显着减小,这有助于紧密限制核心中的所有21个空间模式并减轻弯曲损耗。 我们的实验结果表明,当所有12模式组的平均信号模态增益高达15 dB的C波段时,DMG增益约为3 dB。 我们使用具有适当设计的沟槽结构的DC-EDF的方法可用于开发增益均衡的少量模式放大器,其支持更多的空间模式。 (c)2018年光学学会

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  • 来源
    《Optics Letters》 |2018年第7期|共4页
  • 作者单位

    Tianjin Univ Coll Precis Instrument &

    Optoelect Engn Minist Educ Key Lab Optoelect Informat Technol Tianjin 300072 Peoples R China;

    Tianjin Univ Coll Precis Instrument &

    Optoelect Engn Minist Educ Key Lab Optoelect Informat Technol Tianjin 300072 Peoples R China;

    Tianjin Univ Coll Precis Instrument &

    Optoelect Engn Minist Educ Key Lab Optoelect Informat Technol Tianjin 300072 Peoples R China;

    Fiberhome Telecommun Technol Co Ltd Wuhan 430074 Hubei Peoples R China;

    Tianjin Univ Coll Precis Instrument &

    Optoelect Engn Minist Educ Key Lab Optoelect Informat Technol Tianjin 300072 Peoples R China;

    Fiberhome Telecommun Technol Co Ltd Wuhan 430074 Hubei Peoples R China;

    Tianjin Univ Coll Precis Instrument &

    Optoelect Engn Minist Educ Key Lab Optoelect Informat Technol Tianjin 300072 Peoples R China;

    Tianjin Univ Coll Precis Instrument &

    Optoelect Engn Minist Educ Key Lab Optoelect Informat Technol Tianjin 300072 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 计量学;光学;
  • 关键词

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