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相关概念视频

Transmission Line Design Considerations01:23

Transmission Line Design Considerations

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Aluminum has become the material of choice for overhead transmission lines, surpassing copper due to its abundance and cost-effectiveness. The most prevalent type is the aluminum conductor, steel-reinforced (ACSR), which combines aluminum strands around a steel core. Other variants include all-aluminum conductors (AAC), all-aluminum alloy conductors (AAAC), aluminum conductor alloy-reinforced (ACAR), and aluminum-clad steel conductors. Advanced designs, such as aluminum conductors with steel...
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Propagation Speed of Electromagnetic Waves01:30

Propagation Speed of Electromagnetic Waves

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Electromagnetic waves are consistent with Ampere's law. Assuming there is no conduction current Ampere's law is given as:
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相关实验视频

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超宽带宽阵列波导网格用于高速骨干网络传输网络.

Liangliang Wang, Jiashun Zhang, Junming An

    Optics express
    |November 29, 2023
    PubMed
    概括

    研究人员为C&L频段开发了超宽带阵列波导网格 (AWG),实现了高容量的光传输. 这些设备为下一代骨干网络提供72Tbps/96Tbps的速度.

    科学领域:

    • 光子学和光学工程 光子学和光学工程
    • 电信技术 电信技术 电信技术
    • 材料科学 (波导体) 材料科学

    背景情况:

    • 越来越多的骨干网络速度需要更大的通道间距和带宽.
    • 现有的阵列波导网格 (AWG) 在实现超宽带宽方面存在局限性.
    • 波导技术对于先进的光学元件至关重要.

    研究的目的:

    • 为C&L频段设计和制造60通道,100GHz间隔,超宽带宽的AWG.
    • 评估这些AWG的性能,包括插入损失,统一性和带宽.
    • 为了确保AWG在各种温度范围内稳定运行,用于实际的骨干网络应用.

    主要方法:

    • 使用波导技术设计和制造C&L频段超宽带宽AWG.
    • 采用了新的抛物线设计来增强带宽和光谱特征.
    • 集成的温度控制电路用于包装,以确保运行稳定性.
    • 使用96个Gbaud信号测试了AWG性能,并评估了15°C至65°C的温度稳定性.

    主要成果:

    • 达到2.98dB (C频段) 和2.91dB (L频段) 的峰值插入损失.
    • 证明了极好的统一性:0.36 dB (C频段) 和0.27 dB (L频段).

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  • 测量了0.614nm (C带) 和0.560nm (L带) 的0.5dB带宽.
  • 在-15°C至65°C的温度范围内确认了稳定的性能.
  • 成功传输了96个Gbaud信号,适用于600G/800G骨干网络.

    • 结论:

    • 开发的C&L频段超宽带宽AWG满足了高容量骨干网络的需求.
    • 这些AWG通过单模光纤实现了72 Tbps/96 Tbps的总传输速度.
    • 集成的温度控制器确保在各种环境条件下可靠运行.