Infrared and Laser Engineering, Volume. 51, Issue 5, 20210406(2022)

Research progress of absolute distance measurement methods based on tunable laser frequency sweeping interference

Luming Song1...2,3, Fumin Zhang2,3, Dong Sun1,3, Hongyi Lin1,3, Xiaohua Huang1,3, Miao Yu1,3, and Qian Zhang13 |Show fewer author(s)
Author Affiliations
  • 1School of Optoelectronic and Communication Engineering, Xiamen University of Technology, Xiamen 361024, China
  • 2State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China
  • 3Fujian Key Laboratory of Optoelectronic Technology and Devices, Xiamen 361024, China
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    The accuracy of absolute distance measurement is of great significance to the fields of aerospace technology, precision equipment processing, satellite formation, and planetary space positioning. The frequency sweeping interferometry (FSI) ranging technology based on tunable lasers has become an international research hotspot in recent year. It has the advantages of breaking 2π ambiguity, no dead zone of measurement, non-touch and independent of guide rail. The principle of FSI ranging, types and performance of some devices in the ranging system were briefly introduced, such as tunable lasers, detectors, etc. The factors that affect the uncertainty of the ranging system, including non-linear frequency sweep, Doppler frequency shift, dispersion mismatch, etc. were analyzed. Corresponding compensation methods for influencing uncertainty factors were discussed, and measurement results after compensation were compared and summarized.

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    Luming Song, Fumin Zhang, Dong Sun, Hongyi Lin, Xiaohua Huang, Miao Yu, Qian Zhang. Research progress of absolute distance measurement methods based on tunable laser frequency sweeping interference[J]. Infrared and Laser Engineering, 2022, 51(5): 20210406

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    Paper Information

    Category: Photoelectric measurement

    Received: Jun. 15, 2021

    Accepted: --

    Published Online: Jun. 14, 2022

    The Author Email:

    DOI:10.3788/IRLA20210406

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