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相关概念视频

Electronic Distance Measuring Instruments01:30

Electronic Distance Measuring Instruments

771
Electronic Distance Measuring Instruments (EDMs) are essential tools in modern surveying, offering precise distance measurements by emitting electromagnetic signals and calculating the time required for these signals to travel to a target and return. Two primary types of signals are used in EDMs — light waves and microwaves — each suited to specific environmental and distance requirements. Light-wave-based EDMs utilize either infrared or laser light, providing high accuracy over...
771

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Updated: May 1, 2026

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
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泰拉赫兹速率克尔微共振器 光学时钟机械

Tara E Drake1, Travis C Briles1,2, Jordan R Stone1,2

  • 1Time and Frequency Division, National Institute of Standards and Technology, 385 Broadway, Boulder, Colorado 80305, USA.

Physical review. X
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概括
此摘要是机器生成的。

研究人员使用化开发了一种新的克尔微共振器光学时钟. 该设备实现了光学钟前所未有的精度,使先进的计时实验和高性能测量成为可能.

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科学领域:

  • 光子学和光学工程的工程.
  • 量子光学是一种量子光学.
  • 计量学 计量学 计量学

背景情况:

  • 克尔微振解器使用非线性光学来产生基本的光状态.
  • 光子集成可实现低噪音,紧,高功率的设备.
  • 微复原器中的Kerr单子产生超快脉冲列车和宽带光学频率.

研究的目的:

  • 引入一个Kerr-microresonator光学时钟装置,用于分发光学时钟信号.
  • 为了展示先进光学计量学的基础设备.
  • 探索高性能光学时钟测量的新可能性.

主要方法:

  • 制造一个化 (Si3N4) 微共振器.
  • 生成一个1 THz重复频率的Kerr-soliton频率.
  • 使用微波信号进行电光调制以进行测量,并通过EO相调制生成任意频率.

主要成果:

  • 克尔微振振器光学时钟的特征.
  • 实现绝对频率噪声测量1017分之一的1部分.
  • 证明了CW模式的任意生成,以减少重复频率和增强理分辨率.

结论:

  • 开发的Kerr微共振器光学时钟是光学计时技术的重大进步.
  • 取得的精度和精度为测量高性能光学时钟开辟了新的途径.
  • 这项技术可以在宽带和高速频率范围内进行基于光学的计时实验.