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Generation and Coherent Control of Pulsed Quantum Frequency Combs
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Stable frequency dissemination over multi-access fiber loop link with optical comb.

Jianming Shang, Tianwei Jiang, Chenxia Liu

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    |January 18, 2019
    PubMed
    Summary
    This summary is machine-generated.

    A novel optical frequency dissemination system uses optical-microwave phase locking to compensate for phase errors. This system achieves high-precision frequency transmission over a 150 km fiber loop link, demonstrating potential for long-haul applications.

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    Area of Science:

    • Optics and Photonics
    • Metrology
    • Telecommunications Engineering

    Background:

    • Stable frequency dissemination is crucial for scientific research and advanced technologies.
    • Existing methods face challenges in maintaining precision over long-haul fiber networks.

    Purpose of the Study:

    • To propose and experimentally demonstrate a stable frequency dissemination system utilizing an optical frequency comb.
    • To achieve high-precision frequency transmission over a multi-access optical fiber loop link.

    Main Methods:

    • Development of a novel optical-microwave phase locking loop for phase compensation.
    • Experimental setup using a 100 MHz mode-locked fiber laser and a 150 km fiber loop link.
    • Measurement of frequency instability at two accessing nodes within the loop.

    Main Results:

    • Demonstrated frequency instability of 3.65 × 10-15/1 s and 7.8 × 10-18/1000 s at an intermediate node.
    • Similar high-performance results were observed at another accessing node.
    • Successful transmission of stable frequency over a long-haul multi-access fiber loop.

    Conclusions:

    • The proposed optical comb-based system effectively disseminates stable frequencies over a multi-access fiber loop.
    • The optical-microwave phase locking technique significantly improves phase compensation.
    • The system shows strong potential for future high-precision frequency transmission applications.