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With the acceleration of the intelligentization and digitization process of the power system, the existing OTN network capacity is no longer able to meet the high bandwidth business needs such as large model training and interconnection of computing power centers. This article proposes a super large capacity optical communication networking scheme based on 400 G OTN to address the special environmental constraints of electricity. By systematically analyzing key technical indicators such as Optical Signal to Noise Ratio (OSNR), Bit Error Rate (BER), modulation format, fiber type, and amplifier configuration, and combining with the existing fiber optic cable network, multiple single wave single span 400 G transmission schemes have been designed. The simulation results show that the combination scheme of PM-QPSK modulation, G.654 E fiber, and third-order Raman amplifier can support single span transmission of over 260 km while ensuring an optical signal-to-noise ratio (OSNR) margin of ≥3 dB. In addition, this article proposes a hierarchical deployment strategy to provide theoretical support and engineering practice guidance for the upgrade of power backbone communication networks.

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Research on Key Technologies for 400 G OTN Networking in Electric Power

  • 会议论文

  • 发表日期：

    2026年

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  • Wu Jian,
  • Zhang Tongtong,
  • Wu Guangzhe,
  • Chen Fang,
  • Dou Weiwei,
  • Wang Yanan,
  • Pang Yuhang,
  • Zhu Yanyuan,
  • Zhang Ruyi,
  • Liu Jun,
  • Cui Limin,
  • Ma Chong

摘要

With the acceleration of the intelligentization and digitization process of the power system, the existing OTN network capacity is no longer able to meet the high bandwidth business needs such as large model training and interconnection of computing power centers. This article proposes a super large capacity optical communication networking scheme based on 400 G OTN to address the special environmental constraints of electricity. By systematically analyzing key technical indicators such as Optical Signal to Noise Ratio (OSNR), Bit Error Rate (BER), modulation format, fiber type, and amplifier configuration, and combining with the existing fiber optic cable network, multiple single wave single span 400 G transmission schemes have been designed. The simulation results show that the combination scheme of PM-QPSK modulation, G.654 E fiber, and third-order Raman amplifier can support single span transmission of over 260 km while ensuring an optical signal-to-noise ratio (OSNR) margin of ≥3 dB. In addition, this article proposes a hierarchical deployment strategy to provide theoretical support and engineering practice guidance for the upgrade of power backbone communication networks.