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Acta Optica Sinica, Volume. 40, Issue 15, 1528001(2020)

Frequency Modulated Continuous Wave LIDAR Based on Injection-Locking Technology for Simultaneous Distance and Speed Measurement

Hongying Zhang1, Xiaoning Tian1, Yanyang Lei1, Zongda Zhu2, and Yongkang Dong2、*
Author Affiliations
  • 1Heilongjiang Provincial Key Laboratory of Quantum Manipulation & Control, Harbin University of Science and Technology, Harbin, Heilongjiang 150080, China;
  • 2National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China
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    AbstractGet PDF(in Chinese)
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    References (23)
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    Figures & Tables(9)
    Frequency relationship of FMCW LIDAR

    Fig. 1. Frequency relationship of FMCW LIDAR

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    Schematic of master-slave injection locking

    Fig. 2. Schematic of master-slave injection locking

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    Experimental system of injection-locked FMCW LIDAR

    Fig. 3. Experimental system of injection-locked FMCW LIDAR

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    Output spectrum after injection locking

    Fig. 4. Output spectrum after injection locking

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    Sweep linearity after injection locking

    Fig. 5. Sweep linearity after injection locking

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    Typical results of static object measurement. (a) Loaded modulation signal; (b) time domain beat signal; (c) frequency spectra of beat signal after FFT

    Fig. 6. Typical results of static object measurement. (a) Loaded modulation signal; (b) time domain beat signal; (c) frequency spectra of beat signal after FFT

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    Frequency spectra of beat signals at four different moments. (a) t=1.6 s; (b) t=2.5 s; (c) t=3.5 s; (d) t=4.0 s

    Fig. 7. Frequency spectra of beat signals at four different moments. (a) t=1.6 s; (b) t=2.5 s; (c) t=3.5 s; (d) t=4.0 s

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    Diagrams of object moving away from the LIDAR. (a) Speed-time diagram; (b) distance-time diagram; (c) residual-time diagram

    Fig. 8. Diagrams of object moving away from the LIDAR. (a) Speed-time diagram; (b) distance-time diagram; (c) residual-time diagram

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    Diagrams of object moving close to the LIDAR. (a) Speed-time diagram; (b) distance-time diagram; (c) residual-time diagram

    Fig. 9. Diagrams of object moving close to the LIDAR. (a) Speed-time diagram; (b) distance-time diagram; (c) residual-time diagram

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    Hongying Zhang, Xiaoning Tian, Yanyang Lei, Zongda Zhu, Yongkang Dong. Frequency Modulated Continuous Wave LIDAR Based on Injection-Locking Technology for Simultaneous Distance and Speed Measurement[J]. Acta Optica Sinica, 2020, 40(15): 1528001

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    Paper Information

    Category: Remote Sensing and Sensors

    Received: Mar. 30, 2020

    Accepted: Apr. 29, 2020

    Published Online: Aug. 14, 2020

    The Author Email: Dong Yongkang (aldendong@163.com)

    DOI:10.3788/AOS202040.1528001

    Topics

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