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Acta Optica Sinica, Volume. 42, Issue 15, 1506004(2022)

Adjustability of Differential Mode Gain for All-Fiber Few-Mode Erbium-Doped Fiber Amplifiers

Xinrui Jiang, Baojian Wu*, Yan Xu, Feng Wen, and Kun Qiu
Author Affiliations
  • Key Laboratory of Optical Fiber Sensing and Communications, Ministry of Education, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan , China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (7)
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    References (21)
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    Figures & Tables(7)
    All-fiber 1550 nm/1480 nm FM-IWDM devices. (a) Structural diagram of FM-IWDM device; (b) forward FM-IWDM; (c) backward FM-IWDM

    Fig. 1. All-fiber 1550 nm/1480 nm FM-IWDM devices. (a) Structural diagram of FM-IWDM device; (b) forward FM-IWDM; (c) backward FM-IWDM

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    All-fiber FM-EDFA with FM-IWDMs

    Fig. 2. All-fiber FM-EDFA with FM-IWDMs

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    Refractive index profile of FM-EDF

    Fig. 3. Refractive index profile of FM-EDF

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    Codirectional LP11e and LP11o pumping experiment. (a) Signal and pump mode spots; (b) gain and DMG curves

    Fig. 4. Codirectional LP11e and LP11o pumping experiment. (a) Signal and pump mode spots; (b) gain and DMG curves

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    Bidirectional LP11e and LP01 pumping experiment. (a) Signal and pump mode spots; (b) gain and DMG curves

    Fig. 5. Bidirectional LP11e and LP01 pumping experiment. (a) Signal and pump mode spots; (b) gain and DMG curves

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    Simulated DMG curves for two pumping cases. (a) Codirectional LP11e and LP11o pumping; (b) bidirectional LP11e and LP01 pumping

    Fig. 6. Simulated DMG curves for two pumping cases. (a) Codirectional LP11e and LP11o pumping; (b) bidirectional LP11e and LP01 pumping

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    • Table 1. Test results for FM-IWDM

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      Table 1. Test results for FM-IWDM

      FM-IWDM typeMode

      Insertion

      loss /dB

      		Isolation /dB
      Forward FM-IWDMLP01 （1550 nm）0.844.6
      LP11 （1550 nm）2.045.4
      LP01 （1480 nm）4.9≥50
      LP11 （1480 nm）4.3≥50
      Backward FM-IWDMLP01 （1550 nm）0.947.0
      LP11 （1550 nm）1.948.5
      LP01 （1480 nm）5.0≥50
      LP11 （1480 nm）5.3≥50
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    Xinrui Jiang, Baojian Wu, Yan Xu, Feng Wen, Kun Qiu. Adjustability of Differential Mode Gain for All-Fiber Few-Mode Erbium-Doped Fiber Amplifiers[J]. Acta Optica Sinica, 2022, 42(15): 1506004

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    Paper Information

    Category: Fiber Optics and Optical Communications

    Received: Jan. 11, 2022

    Accepted: Feb. 28, 2022

    Published Online: Aug. 4, 2022

    The Author Email: Wu Baojian (bjwu@uestc.edu.cn)

    DOI:10.3788/AOS202242.1506004

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology