Acta Optica Sinica, Volume. 44, Issue 14, 1412001(2024)
Calibration Method of Frequency Scanning Interferometry Laser Ranging System
Figures & Tables(9)
Fig. 1. Schematic diagram of the frequency scanning interferometry laser ranging system
Fig. 2. Measurement methods for system parameter calibration. (a) Zero-point relationship; (b) linear relationship
Fig. 3. Simulations of nonlinear correction in laser frequency scanning 1. (a) Drive current curve; (b) laser frequency curve; (c) frequency scanning speed curve
Fig. 4. Simulations of nonlinear correction in laser frequency scanning 2. (a) Drive current curve; (b) laser frequency curve; (c) frequency scanning speed curve
Fig. 5. System calibration experimental platform. (a) Measuring system; (b) system core internal structure
Fig. 8. Laser frequency scanning interferometry signal spectrums. (a) Before correction; (b) after correction
Table 1. System parameter calibration experiment results
View tableTable 1. System parameter calibration experiment results
Data
set
Target
number
Angle
/（°） Length
/μm Spectral peak center position System parameter /μm /μm 1 1-5 14.60306 818796 -0.3105718 0.2399099 0.2267158 5896391.9 1831253.0 2 2-6 14.63890 818769 0.2383059 0.2268002 5896392.0 1831253.0 3 3-7 14.65556 818710 0.2373041 0.2275111 5896392.1 1831253.0 4 4-8 14.67723 819072 0.2363180 0.2282321 5896392.0 1831253.0
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Yuchang Yan, Linyang Xue, Xiaosa Chen, Guilin Chen, Changpei Han. Calibration Method of Frequency Scanning Interferometry Laser Ranging System[J]. Acta Optica Sinica, 2024, 44(14): 1412001
Paper Information
Category: Instrumentation, Measurement and Metrology
Received: Feb. 19, 2024
Accepted: Mar. 29, 2024
Published Online: Jul. 4, 2024
The Author Email: Han Changpei (changpei_han@mail.sitp.ac.cn)
CSTR:32393.14.AOS240643
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