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相关概念视频

Cascaded Op Amps01:16

Cascaded Op Amps

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Operational amplifiers (op-amps) are versatile electronic components that can be interconnected in a cascade - one after another in a linear sequence. This cascading is possible due to their infinite input resistance and zero output resistance, allowing them to maintain their input-output relationships even when connected in series.
In a cascaded system, each op-amp is referred to as a stage. The output of one stage drives the input of the subsequent stage. As the input signal passes through...
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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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相关实验视频

Updated: Jan 6, 2026

Fabrication of High Contrast Gratings for the Spectrum Splitting Dispersive Element in a Concentrated Photovoltaic System
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统一的低损耗循环阵列波导网格路由器与输入分割器和输出组合器.

Shuojian Zhang, Jiamei Gu, Huimin Yan

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    此摘要是机器生成的。

    这项研究介绍了一种新的在绝缘体上阵列波导网格路由器 (AWGR) 设计. 改进的设计实现了显著降低损失和不均性,提高了光通信性能.

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    科学领域:

    • 光子学和光学工程的工程.
    • 集成光学 集成光学 集成光学
    • 导波器件 导波器件 导波器件

    背景情况:

    • 阵列波导网格路由器 (AWGR) 是波长分割多重复合 (WDM) 系统中的关键组件.
    • 传统的AWGR设计经常存在不均性和高插入损失,限制了其性能.
    • 边缘通道优化对于提高AWGR效率至关重要.

    研究的目的:

    • 设计和制造一个统一的,低损耗的4×4在绝缘体 (SOI) 循环AWGR.
    • 为了提高合效率并减少不均性,使用边缘通道输入分割器和输出组合器.
    • 与传统的 AWGR 设计相比,展示了改进的性能指标.

    主要方法:

    • 在在绝缘体平台上制造4x4循环AWGR.
    • 在边缘通道上集成输入分割器和输出组合器.
    • 在分割/组合路径中分析场分布和合效率.

    主要成果:

    • 在16个输入输出路径中实现了0.4dB的非均性损失.
    • 与传统设计相比,在不均性方面有3dB的改进.
    • 最大插入损失减少3dB,最小损失为1.1dB,交叉声低于-22.7dB.

    结论:

    • 具有边缘通道分割器/组合器的新型AWGR设计显著减少了损失和不均性.
    • 这种设计比传统的AWGR提高了3dB的性能.
    • 该方法可扩展到更大的AWGR和未来光网络的双向设备.