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高性能激光系统用于紧的冷原子光学时钟.

Binghong Yu1,2, Bowen Yang1,2, Haojie Zhao1,2

  • 1Wangzhijiang Innovation Center for Laser, Aerospace Laser Technology and System Department, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China.

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概括
此摘要是机器生成的。

一种新的频率锁定技术创造了高性能780nm激光系统. 该系统稳定了87Rb D2线的多个过渡,这对于紧的冷原子光学钟和量子传感器至关重要.

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科学领域:

  • 原子,分子和光学物理学
  • 量子计量学 量子计量学

背景情况:

  • 高性能激光系统对于精确测量至关重要.
  • 稳定激光频率到原子过渡对于光学时钟等应用至关重要.

研究的目的:

  • 为了展示一个简单的频率锁定技术,用于高性能780nm激光系统.
  • 为了实现87Rb D2线的多过渡稳定.
  • 为了实现在紧的冷原子光学钟和量子传感器中的应用.

主要方法:

  • 使用外部调制和吸收光谱学.
  • 使用光纤电光调制器进行频率调制.
  • 将激光稳定到87Rb D2线的多个过渡.

主要成果:

  • 在循环过渡过程中,在1秒内达到2.21 × 10-13的分数频率不稳定性.
  • 获得了1.46 kHz的线宽,用于循环转换.
  • 在1秒内达到1.98 × 10-12的创纪录的低不稳定性,用于回过渡.

结论:

  • 开发的激光系统提供了出色的短期频率稳定性和多频锁定.
  • 这种简化的系统是紧的冷原子光学钟的关键子系统.
  • 测量性能使得立即应用在瑞德伯格电量测量,原子磁量测量和物质波干扰测量.