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Compact portable laser system for mobile cold atom gravimeters.

Xiaowei Zhang, Jiaqi Zhong, Biao Tang

    Applied Optics
    |August 18, 2018
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    Summary
    This summary is machine-generated.

    We developed a compact laser system for mobile cold atom interferometers. This portable system maintains high sensitivity and stability, even after long-distance transport.

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    Area of Science:

    • Atomic physics
    • Optical engineering
    • Metrology

    Background:

    • Cold atom interferometers require stable, high-performance laser systems.
    • Existing systems can be bulky and sensitive to environmental changes, limiting mobility.

    Purpose of the Study:

    • To design and build a compact, portable laser system for high-sensitivity mobile cold atom interferometers.
    • To ensure the system's stability and robustness for field applications.

    Main Methods:

    • Integrated laser system on a single module (45cm x 45cm x 16cm).
    • Utilized a double-sided optical structure and kinematic-free mounts for enhanced integration and stability.
    • Employed up to 13 fiber ports for various atomic manipulation and detection stages.

    Main Results:

    • Achieved a sensitivity of 28 μGal/√Hz in a mobile atom gravimeter application.
    • Demonstrated system resilience by successfully operating after 1200 km of truck transportation without realignment.

    Conclusions:

    • The developed laser system offers a compact, stable, and robust solution for mobile cold atom interferometry.
    • This technology enables high-precision measurements in diverse field environments.