Microwave photonic approach to spatial distance measurement

Zhen Zhang; Jiehu Kang; Bin Wu

doi:10.1117/12.3007849

21 December 2023 Microwave photonic approach to spatial distance measurement

Zhen Zhang, Jiehu Kang, Bin Wu

Proceedings Volume 12966, AOPC 2023: AI in Optics and Photonics ; 1296620 (2023) https://doi.org/10.1117/12.3007849
Event: Applied Optics and Photonics China 2023 (AOPC2023), 2023, Beijing, China

Abstract

High-accuracy spatial distance measurement is essential to scientific research and equipment manufacturing, and industrial production control. To meet the demand of high-performance measurement, a distance measurement approach based on microwave photonic technology is proposed, in which two electro-optic modulators are connected in series. The first one is employed for performing transmission signal and the second is used for modulating echo signal, forming a vector superposition of microwave signal. By microwave frequency sweeping, the measured distance can be resolved from the microwave amplitude spectrum. To verify the performance of the proposed approach, a proof-of-concept experiment is carried out. The measurement results show that an accuracy of ±0.5 mm is obtained.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Zhen Zhang, Jiehu Kang, and Bin Wu "Microwave photonic approach to spatial distance measurement", Proc. SPIE 12966, AOPC 2023: AI in Optics and Photonics , 1296620 (21 December 2023); https://doi.org/10.1117/12.3007849

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