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相关概念视频

Clipper Circuit01:18

Clipper Circuit

1.0K
A clipper circuit is a fundamental wave-shaping device that harnesses the unique properties of diodes to alter and control waveform characteristics. This technology is widely used in electronic devices, especially in television and radar communication systems, where it enhances waveform modulation in both transmitters and receivers.
The operation of a clipper circuit can be exemplified by analyzing a dual-clipper configuration setup that integrates two ideal diodes, each paired with a biasing...
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Frequency-Domain Interpretation of PD Control01:24

Frequency-Domain Interpretation of PD Control

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Proportional-Derivative (PD) controllers are widely used in fan control systems to improve stability and performance. A fan control system can be effectively represented using a Bode plot to illustrate the impact of a PD controller through its transfer function. The Bode plot visually conveys how PD control modifies the fan's response across various frequencies, providing a frequency domain interpretation of the controller's behavior.
The proportional control gain, combined with the...
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相关实验视频

Updated: May 2, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
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Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

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可以广泛调节的双波长波导基于光学参数振荡器.

Maximilian Timmerkamp, Ming Gao, Carsten Fallnich

    Optics express
    |August 13, 2025
    PubMed
    概括

    我们开发了一种可调节的双波长光学参数振荡器 (OPO),使用化波导. 该设备产生两个独立调节的置脉冲,使灵活的多波长应用成为可能.

    科学领域:

    • 光子学是指光子学的使用方法.
    • 非线性光学是非线性光学.
    • 集成光学 集成光学 集成光学

    背景情况:

    • 光学参数振荡器 (OPO) 对于产生可调节的激光光是至关重要的.
    • 化 (SiN) 波导为集成光子设备提供了出色的非线性特性.

    研究的目的:

    • 在单个化波导中演示一个可广泛调节的双波长光学参数振荡器 (OPO).
    • 为了实现两个机输出的独立调,实现多功能多波长发电.

    主要方法:

    • 在SiN波导的基本TE和TM模式中利用了退化的四波混合.
    • 采用可调节的双断层在空腔内,用于自主分散调节车输出.
    • 实施了一个直角偏振和延迟的送方案.

    主要成果:

    • 产生了两个独立调节的置脉冲,随意的频率间距高达65 THz.
    • 在波长区域从1.11到1.46μm实现了调.
    • 从基本波导模式证明了宽带四波混合收益.

    结论:

    • 开发的基于双波长波导的OPO是多波长应用的新平台.

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  • 这项技术可以灵活和独立地控制生成的光学频率.
  • 为光谱学,传感和光通信方面的进步铺平了道路.