2023 Fiscal Year Annual Research Report
Research of high speed and high precision LiDAR with real time air refractive index self correction
| Project/Area Number |
22KJ1365
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| Allocation Type | Multi-year Fund |
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| Research Institution | The University of Electro-Communications |
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Principal Investigator |
LI RUNMIN 電気通信大学, 情報理工学研究科, 特別研究員(DC2)
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| Project Period (FY) |
2023-03-08 – 2024-03-31
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| Keywords | EO comb / distance measurement / synthetic wavelength |
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| Outline of Annual Research Achievements |
This year, the developed coherently synthesized two-color EO comb was applied to absolute distance measurement. A synthetic wavelength of 120 micrometer is constructed by the two center wavelengths of the two-color EO comb. Through combining synthetic wavelength interferometry, single wavelength interferometry and microwave phase detection, absolute distance measurement with nm resolution is achieved. The non-ambiguity range is 3mm. The update rate is 1000 Hz. In conclusion, I could achieve my research objective to develop high-accuracy and high-speed distance measurement technique using the novel two-color EO comb.
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