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相关概念视频

MOSFET: Enhancement Mode01:22

MOSFET: Enhancement Mode

792
Enhancement-mode MOSFETs are pivotal components in electronics, distinguished by their capacity to act as highly efficient switches. They are part of the larger family of metal-oxide Semiconductor Field-Effect Transistors (MOSFETs). They are available in two types: p-channel and n-channel, each tailored to specific polarity operations.
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no...
792

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压抑的等离子模式合器,用于高效的光电酸调制器.

Yan Gao, Victor Torres-Company, Jochen Schröder

    Optics express
    |September 23, 2025
    PubMed
    概括

    研究人员通过重新设计电极形状以最大限度地减少光学插入损失和电压长度产品来优化酸电光调节器. 这一创新提高了各种光学设备的调制器效率和性能.

    科学领域:

    • 光子学和光电学和光电子学.
    • 材料科学 材料科学 材料科学
    • 电气工程 电气工程

    背景情况:

    • 集成酸 (LN) 电光 (EO) 调制器对于光通信至关重要,因为LN的有利性质.
    • 虽然电光带宽 (BW) 和半波电压 (Vπ) 的权衡得到了充分研究,但电压长度乘积 (Vπ·L) 和光学插入损失 (IL) 的权衡需要进一步研究高效的EO调节器.
    • 这种Vπ·L-IL权衡受到电极几何学的影响,影响电场强度和金属电极吸收损失.

    研究的目的:

    • 为了研究电极设计和光学插入损失在LN调制器之间的关系.
    • 通过提出一种新的电极形状来克服Vπ·L-IL的权衡.
    • 用数字来证明拟议设计的性能改进.

    主要方法:

    • 分析了吸收损失对电极宽度的依赖性,考虑了介电波导和金属-介电等离子模式之间的模式合.
    • 开发了一个特殊的电极形状来抑制这种模式合.
    • 进行了数值模拟来评估传播损失,Vπ·L和频率响应 (3-dB BW).

    主要成果:

    • 与传统设计相比,拟议的电极设计在相同的Vπ·L下实现了传播损失的5倍减少.
    • 在相同的光学插入损失下,Vπ·L减少了16%.

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  • 该设计保持了调制器的频率响应,使50 GHz以上的3-dB BW具有0.8厘米长的电极.

    • 结论:

    • 新型电极形状有效地减轻了LN调制器中的Vπ·L-IL权衡,从而提高了效率和降低了插入损失.
    • 这一设计原理可用于提高各种光学设备的性能,包括相位变换器,过器和光学共振器.
    • 这些发现为开发下一代高性能集成光子设备铺平了道路.