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Chinese Journal of Lasers, Volume. 49, Issue 11, 1112001(2022)

Integrated Design and Realization of Two-Dimensional Magneto-Optical Trap for Ultra-Cold Atomic Physics Rack in Space

Wenwen Li1,3, Qian Liu1,3, Ang’ang Liang1,3, Yu Xie1,3, Lin Li1,3, Rui Li2, Jie Meng2, Taijun Pan2, Bin Wang2, Xinping Xu2、**, and Wenli Wang2、*
Author Affiliations
  • 1Key Laboratory of Quantum Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 2Spaceborne Laser Engineering Department, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 3College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 101408, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (8)
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    References (1)
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    Figures & Tables(8)
    2D-MOT total optical path diagram and energy diagram. (a) Diagram of total optical path model for 2D-MOT; (b) D2 line energy diagram of Rb-87 atom

    Fig. 1. 2D-MOT total optical path diagram and energy diagram. (a) Diagram of total optical path model for 2D-MOT; (b) D2 line energy diagram of Rb-87 atom

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    Footprint diagrams of 2D-MOT light path. (a) Light spot size of cooling repumping beam in center of 2D-MOT; (b) light spot size of buffer beam in center of 2D-MOT; (c) light spot size of push beam at differential pipeline; (d) divergence angle distribution of cooling repumping beam; (e) divergence angle distribution of buffer beam

    Fig. 2. Footprint diagrams of 2D-MOT light path. (a) Light spot size of cooling repumping beam in center of 2D-MOT; (b) light spot size of buffer beam in center of 2D-MOT; (c) light spot size of push beam at differential pipeline; (d) divergence angle distribution of cooling repumping beam; (e) divergence angle distribution of buffer beam

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    MTF diagrams. (a) Cooling repumping beam; (b) buffer beam

    Fig. 3. MTF diagrams. (a) Cooling repumping beam; (b) buffer beam

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    Spot diagrams. (a) Cooling repumping beam; (b) buffer beam

    Fig. 4. Spot diagrams. (a) Cooling repumping beam; (b) buffer beam

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    General structure drawing and profiles of 2D-MOT optical machine. (a) Structural diagram of 2D-MOT optical machine; (b) optical-mechanical profile for cooling repumping beam; (c) optical-mechanical profile for push beam; (d) optical-mechanical profile for buffer beam

    Fig. 5. General structure drawing and profiles of 2D-MOT optical machine. (a) Structural diagram of 2D-MOT optical machine; (b) optical-mechanical profile for cooling repumping beam; (c) optical-mechanical profile for push beam; (d) optical-mechanical profile for buffer beam

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    Design of V-GROOVE fiber. (a) Structural diagram; (b) arrangement diagram of cooling repumping optical fibers; (c) sequence diagram of cooling repumping beams

    Fig. 6. Design of V-GROOVE fiber. (a) Structural diagram; (b) arrangement diagram of cooling repumping optical fibers; (c) sequence diagram of cooling repumping beams

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    Normalized loading atom number in 3D-MOT with normalization factor of 9×108. (a) Atomic loading curves in 3D-MOT; (b) fitting line of loading rate with push beam; (c) fitting line of loading rate without push beam

    Fig. 7. Normalized loading atom number in 3D-MOT with normalization factor of 9×108. (a) Atomic loading curves in 3D-MOT; (b) fitting line of loading rate with push beam; (c) fitting line of loading rate without push beam

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    • Table 1. Optical path test results

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      Table 1. Optical path test results

      BeamSpot size /mmDivergence angle /mradPolarization stateInput power /mW
      Long window cooling & repumping beams13.100.39σ－60 (cooling beam 1) and 20 (repumping beam 1)
      Short window cooling & repumping beams13.270.41σ＋60 (cooling beam 2) and 20 (repumping beam 2)
      Buffer beam10.060.13σ－10
      Push beam2.02 σ＋15
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    Wenwen Li, Qian Liu, Ang’ang Liang, Yu Xie, Lin Li, Rui Li, Jie Meng, Taijun Pan, Bin Wang, Xinping Xu, Wenli Wang. Integrated Design and Realization of Two-Dimensional Magneto-Optical Trap for Ultra-Cold Atomic Physics Rack in Space[J]. Chinese Journal of Lasers, 2022, 49(11): 1112001

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    Paper Information

    Category: quantum optics

    Received: Oct. 8, 2021

    Accepted: Nov. 15, 2021

    Published Online: Jun. 2, 2022

    The Author Email: Xu Xinping (irenexu@siom.ac.cn), Wang Wenli (wangwenli@siom.ac.cn)

    DOI:10.3788/CJL202249.1112001

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology