Performance and limitations of dual-comb based ranging systems
Abstract
Dual-comb LiDARs have the potential to perform high-resolution ranging at high speed. Here, through an implementation involving electro-optic modulators and heterodyne detection, we quantify the ranging systems trade-off between precision and non-ambiguity range (NAR) using a unique performance factor. We highlight the influence of the comb amplitude envelope on the precision with a distance measurement limited by the repetition rate of the optical comb. The influence of the combs repetition rate on the NAR and on the precision is illustrated through a setup allowing distance measurement with a tunable NAR. Finally, we demonstrate the impossibility to resolve different targets, quantify the impact on the measured distance and develop on the conditions in which non-linear effects of the interference make the measurement impossible.
Cite
@article{arxiv.2202.05644,
title = {Performance and limitations of dual-comb based ranging systems},
author = {Bruno Martin and Patrick Feneyrou and Daniel Dolfi and Aude Martin},
journal= {arXiv preprint arXiv:2202.05644},
year = {2022}
}
Comments
The authors acknowledge financial support by the Qombs Project (FET Flagship on Quantum Technologies grant No 820419) Quantum simulation and entanglement engineering in quantum cascade laser frequency combs