An absolute distance measurement system based on wavelength multiplexing dual optical comb

Shiyu Yang; Zhehai Zhou; Li Chen; Guangwei Chen; Guoqing Hu

doi:10.1117/12.3048492

20 November 2024 An absolute distance measurement system based on wavelength multiplexing dual optical comb

Shiyu Yang, Zhehai Zhou, Li Chen, Guangwei Chen, Guoqing Hu

Proceedings Volume 13241, Optical Metrology and Inspection for Industrial Applications XI; 132412B (2024) https://doi.org/10.1117/12.3048492
Event: SPIE/COS Photonics Asia, 2024, Nantong, Jiangsu, China

Conference Poster

Abstract

This paper introduces a new absolute distance measurement system. A single-cavity double-comb laser based on single-wall carbon nanotube mode-locking is used as a light source by adjusting the intraccavity loss, and two optical combs with slight differences in wavelength and repetition rate and constant repetition frequency difference are generated for absolute distance measurement based on asynchronous optical sampling. The measured fuzzy distance is about 1.5 meters, and the measurement uncertainty is 15μm.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Shiyu Yang, Zhehai Zhou, Li Chen, Guangwei Chen, and Guoqing Hu "An absolute distance measurement system based on wavelength multiplexing dual optical comb", Proc. SPIE 13241, Optical Metrology and Inspection for Industrial Applications XI, 132412B (20 November 2024); https://doi.org/10.1117/12.3048492

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