Cpt原子钟

CPT (Coherent Population Trapping) atomic clock

Abstract

The invention relates to a CPT (Coherent Population Trapping) atomic clock which comprises a first physical unit, a second physical unit and a third physical unit, wherein the first physical unit comprises a laser, a flat convex mirror and a quarter wave plate; the second physical unit comprises a Polaroid set; the third physical unit comprises an Rb bubble air chamber and a photoelectric detector; the laser outputs round polarized light through the flat convex mirror and the quarter wave plate; and the round polarized light sequentially passes through the Polaroid set and the Rb bubble air chamber to the photoelectric detector. In the invention, the first physical unit, the second physical unit and the third physical unit have the advantages of compact and firm structure, convenience of debugging and strong adaptability and are particularly in an integrated design of a magnetic shielding device. The invention realizes the optimization design of the physical units with a miniaturization requirement under the condition of low micromachining process at present and has the advantages of low cost, high stability, convenience of debugging, small size and low power consumption.
本发明涉及一种CPT原子钟,包括第一、二、三物理单元,所述的第一物理单元包括激光器、平凸镜和四分之一波片,所述的第二物理单元包括偏振片组,所述的第三物理单元包括铷泡气室和光电探测器,所述的激光器通过平凸镜和四分之一波片输出圆偏振光,该圆偏振光依次经过偏振片组、铷泡气室至光电探测器。本发明的第一、二、三物理单元结构紧凑牢靠,方便调测,适应性强,特别是磁屏蔽装置一体化的设计。本发明解决了在现有微加工工艺技术不强的条件下,实现了物理单元对于小型化要求的优化设计,成本低、稳定度高、调测方便、体积小、功耗小。

Claims

Description

Topics

Download Full PDF Version (Non-Commercial Use)

Patent Citations (6)

    Publication numberPublication dateAssigneeTitle
    CN-101425804-AMay 06, 2009北京大学Coherent arrangement imprisoned atomic clock
    CN-1603984-AApril 06, 2005中国科学院武汉物理与数学研究所Coherent arrangement imprisoned cold atomic clock
    CN-1973248-AMay 30, 2007国家科研中心Method for modulating an atomic clock signal with coherent population trapping and corresponding atomic clock
    CN-202018568-UOctober 26, 2011合肥威师智能电子电器厂一种cpt原子钟
    US-2010156547-A1June 24, 2010Mcguyer Bart H, Jau Yuan-Yu, William HapperMethod for suppressing light shift in optical pumping systems
    WO-0126231-A1April 12, 2001Istituto Elettrotecnico Nazionale Galileo FerrarisApparatus for the generation of a reference frequency

NO-Patent Citations (0)

    Title

Cited By (4)

    Publication numberPublication dateAssigneeTitle
    CN-103929175-BJanuary 18, 2017北京无线电计量测试研究所一种cpt原子频标的量子系统装置
    CN-104090482-AOctober 08, 2014北京无线电计量测试研究所一种用于便携式原子钟的光学系统及其控制方法
    CN-105137741-ADecember 09, 2015成都天奥电子股份有限公司一种抗振型的芯片原子钟物理系统
    CN-105467821-AApril 06, 2016北京无线电计量测试研究所一种相干布居囚禁原子钟的物理系统