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Acta Optica Sinica, Volume. 43, Issue 3, 0306001(2023)

All-Optical OPC-NOLM Amplitude Regeneration for Intact Phase Preservation

Biao Guo, Baojian Wu*, Feng Wen, and Kun Qiu
Author Affiliations
  • Key Laboratory of Optical Fiber Sensing & Communications, Ministry of Education, School of Information and Communication Engineering, 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 (28)
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    Figures & Tables(7)
    OPC-NOLM-based phase-preserving amplitude regeneration scheme

    Fig. 1. OPC-NOLM-based phase-preserving amplitude regeneration scheme

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    PTF curves for OPC-NOLM regenerator and single NOLM structure

    Fig. 2. PTF curves for OPC-NOLM regenerator and single NOLM structure

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    Phase preserving performance of OPC-NOLM and single NOLM regenerators

    Fig. 3. Phase preserving performance of OPC-NOLM and single NOLM regenerators

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    Simulation system for 16QAM signal regeneration

    Fig. 4. Simulation system for 16QAM signal regeneration

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    Constellation diagrams at four points in regeneration structure with input signal-to-noise ratio of 12 dB. (a) Degraded signal input to regenerator; (b) transmission signal from single NOLM structure; (c) reflected signal of single NOLM structure through OPC structure; (d) output signal of OPC-NOLM regenerator

    Fig. 5. Constellation diagrams at four points in regeneration structure with input signal-to-noise ratio of 12 dB. (a) Degraded signal input to regenerator; (b) transmission signal from single NOLM structure; (c) reflected signal of single NOLM structure through OPC structure; (d) output signal of OPC-NOLM regenerator

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    Comparison of regeneration performance between OPC-NOLM regenerator and single NOLM structure

    Fig. 6. Comparison of regeneration performance between OPC-NOLM regenerator and single NOLM structure

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    • Table 1. Comparison of phase preserving characteristics of several regenerative structures

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      Table 1. Comparison of phase preserving characteristics of several regenerative structures

      TypeRegenerated signalPTFPhase preservingPhase /（°）
      NOLM-nested MZI［28］256QAMUniform multiple levelsPhase regeneration-
      aNOLM［13］8QAM2 regenerative levelsYes17.18
      Conj-NOLM［18］16QAM3 regenerative levelsYes8.8
      Att-NALM［23］16QAM3 regenerative levelsYes6.3
      MZI-nested NOLM［24］QPSK2 regenerative levelsYes3.8
      On-chip MZI［17］16QAM3 regenerative levelsYes3.8
      OPC-NOLM16QAM3 regenerative levelsYes0.002
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    Biao Guo, Baojian Wu, Feng Wen, Kun Qiu. All-Optical OPC-NOLM Amplitude Regeneration for Intact Phase Preservation[J]. Acta Optica Sinica, 2023, 43(3): 0306001

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    Paper Information

    Category: Fiber Optics and Optical Communications

    Received: May. 27, 2022

    Accepted: Aug. 2, 2022

    Published Online: Feb. 13, 2023

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

    DOI:10.3788/AOS0306001

    Topics

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