OPTICS & OPTOELECTRONIC TECHNOLOGY, Volume. 22, Issue 6, 129(2024)

Design and Experimental Verification of Quantized Axis Magnetic Field for Dynamic Atomic Gravimeter

LI Jun-qiang, MA Si-qian, CHEN Xin-wen, and ZHOU Chao
Author Affiliations
  • Huazhong Institute of Electro-Optics —Wuhan National Laboratory for Optoelectronics,Wuhan 430223,China
  • show less

    In atomic interference based on two-photon Raman transitions,the relative angular deviation between the magnetic field of the quantization axis and the direction of the Raman light wave vector,as well as its spatial uniformity and temporal stability,are the key factors affecting the atomic interferometer. In this paper,a triaxial orthogonal Helmholtz coil is used to compensate for the angular deviation between the magnetic quantization axis direction of the atomic gravimeter and the Raman light wave vector in a dynamic environment,and the driving current of each axis coil and the magnetic field gradient in the interference region are calculated based on COMSOL simulation. The control strategy of simulated PID+ disturbance suppression is used to control the constant current source to drive the triaxial coil to improve the long-term stability of the magnetic field of the quantized axis. The experiments verify the feasibility of the three-axis Helmholtz coil to compensate the magnetic quantization axis,and realize the direction control of the magnetic quantization axis in the interference region and the magnetic field gradient with the perturbation not exceeding 3 mGs,which lays a technical foundation for the development of dynamic atomic gravimeter and has certain reference significance for dynamic atomic interferometer based on two-photon Raman transition.

    Tools

    Get Citation

    Copy Citation Text

    LI Jun-qiang, MA Si-qian, CHEN Xin-wen, ZHOU Chao. Design and Experimental Verification of Quantized Axis Magnetic Field for Dynamic Atomic Gravimeter[J]. OPTICS & OPTOELECTRONIC TECHNOLOGY, 2024, 22(6): 129

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category:

    Received: Jul. 15, 2024

    Accepted: Jan. 21, 2025

    Published Online: Jan. 21, 2025

    The Author Email:

    DOI:

    CSTR:32186.14.

    Topics