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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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Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
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从单体微振荡器生成光学频率.

P Del'Haye1, A Schliesser, O Arcizet

  • 1Max Planck Institut für Quantenoptik (MPQ), Hans-Kopfermann-Strasse 1, 85748 Garching, Germany.

Nature
|December 22, 2007
PubMed
概括
此摘要是机器生成的。

研究人员开发了一种新方法,使用微振荡器和克尔非线性产生光学频率. 这种方法为精密测量和先进应用提供了一个比模式锁定激光器更紧,更有效的替代方案.

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科学领域:

  • 光子学和量子光学 量子光学和量子光学
  • 非线性光学是非线性光学.
  • 计量学 计量学 计量学

背景情况:

  • 光学频率对于高精度频率测量至关重要,它将光学频率与无线电频率联系起来.
  • 传统的方法,如模式锁定激光器,是复杂和重的.
  • 需要新的方法来实现小型化和高效的子生成.

研究的目的:

  • 展示一种使用微振解器生成光学频率的新方法.
  • 为了实现带宽边生成与高模式间隔均性.
  • 探索一种更紧,更节能的子发电技术.

主要方法:

  • 在一个单一的超高Q微共振器中利用克尔的非线性.
  • 连续波激光与微共振器模式的相互作用.
  • 采用光学异极体测量来表征特性.

主要成果:

  • 产生了一个光学频率,带宽为500nm,大约为1550nm.
  • 实现了模式间距均性,相对精度为7.3 x 10−18.
  • 证明了连锁参数相互作用,克服了被动腔分散.

结论:

  • 这种基于微共振器的方法为单体光学频率 generator提供了一条道路.
  • 与现有技术相比,该方法显著降低了尺寸,复杂性和功耗.
  • 允许在高级应用中以高重复率 (>100 GHz) 运行.