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相关概念视频

Standing Waves in a Cavity01:28

Standing Waves in a Cavity

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A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by:
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Generation and Coherent Control of Pulsed Quantum Frequency Combs
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电光频率划分和稳定的微波合成.

Jiang Li1, Xu Yi1, Hansuek Lee1

  • 1T. J. Watson Laboratory of Applied Physics, California Institute of Technology, Pasadena, CA 91125, USA.

Science (New York, N.Y.)
|July 19, 2014
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概括
此摘要是机器生成的。

研究人员展示了光学频率划分用于稳定的微波生成. 这种电光方法使用可调节的振荡器来创建双光学频率,简化微波合成并减少相位噪声.

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科学领域:

  • 物理 物理学 物理
  • 电气工程 电气工程
  • 光学是什么?光学是什么?光学是什么?

背景情况:

  • 光学频率有先进的计时和微波信号生成.
  • 传统的微波合成器依赖于特定的振荡器和频率参考配置.

研究的目的:

  • 展示一种用于光学频率划分和微波生成的新方法.
  • 使用电光方法简化微波信号合成.

主要方法:

  • 使用可调节的电振荡器,通过相位调制生成双光学频率.
  • 通过光学频率划分,使用电动振荡器的相锁控制.
  • 将传统的振荡器和频率参考作用转化为微波合成.

主要成果:

  • 通过光学频率分割实现了稳定的微波生成.
  • 在振荡器中证明了显著的相位噪声降低.
  • 对于高线性光检测的宽松要求.
  • 展示了该技术的可调性和可扩展性,用于更高的分割比率.

结论:

  • 提出的电光方法为产生稳定的微波提供了一个更简单,可调和和可扩展的替代方案.
  • 这种方法通过重新配置振荡器和频率参考来有效降低相位噪声.
  • 该技术在先进的计时和通信系统中具有潜在的应用.