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Acta Optica Sinica, Volume. 41, Issue 16, 1614001(2021)

Digital Laser Frequency Stabilization with Reference to An Optical Frequency Comb

Meng Kong1,2,3, Yanting Lu1,2、*, Dong Lin1,2,3, Zhaoying Zheng1,2, Changwei Li1,2,3, Xiaoming Zhu1,2, and Sijiong Zhang1,2,3
Author Affiliations
  • 1National Astronomical Observatories/Nanjing Institute of Astronomical Optics & Technology, Chinese Academy of Sciences, Nanjing, Jiangsu 210042, China;
  • 2CAS Key Laboratory of Astronomical Optics & Technology, Nanjing Institute of Astronomical Optics & Technology, Nanjing, Jiangsu 210042, China;
  • 3University of Chinese Academy of Sciences, School of Astronomy and Space Science, Beijing 100049, China
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    Figures&Tables (11)
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    References (18)
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    Figures & Tables(11)
    Schematic diagram of general structure of laser frequency stabilization system

    Fig. 1. Schematic diagram of general structure of laser frequency stabilization system

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    Schematic diagram of optical path of heterodyne interference

    Fig. 2. Schematic diagram of optical path of heterodyne interference

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    Schematic diagram of frequency discrimination circuit structure

    Fig. 3. Schematic diagram of frequency discrimination circuit structure

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    Schematic diagram of high frequency to voltage conversion circuit structure

    Fig. 4. Schematic diagram of high frequency to voltage conversion circuit structure

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    Timing logic diagram of high frequency to voltage conversion circuit

    Fig. 5. Timing logic diagram of high frequency to voltage conversion circuit

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    Schematic diagram of feedback control module

    Fig. 6. Schematic diagram of feedback control module

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    Flow chart of feedback control

    Fig. 7. Flow chart of feedback control

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    Spectrum of beat signal

    Fig. 8. Spectrum of beat signal

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    Frequency drift of unlocked laser within 800 s

    Fig. 9. Frequency drift of unlocked laser within 800 s

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    Frequency drift of locked laser within 800 s

    Fig. 10. Frequency drift of locked laser within 800 s

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    Long-term drift of laser frequency within 1.6 h and its Allan deviation

    Fig. 11. Long-term drift of laser frequency within 1.6 h and its Allan deviation

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    Meng Kong, Yanting Lu, Dong Lin, Zhaoying Zheng, Changwei Li, Xiaoming Zhu, Sijiong Zhang. Digital Laser Frequency Stabilization with Reference to An Optical Frequency Comb[J]. Acta Optica Sinica, 2021, 41(16): 1614001

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Jan. 19, 2021

    Accepted: Mar. 18, 2021

    Published Online: Aug. 12, 2021

    The Author Email: Lu Yanting (ytlu@niaot.ac.cn)

    DOI:10.3788/AOS202141.1614001

    Topics

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