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Article Dans Une Revue Optics Express Année : 2022

Performance and limitations of dual-comb based ranging systems

Résumé

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.

Dates et versions

hal-03777020 , version 1 (14-09-2022)

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Bruno Martin, Patrick Feneyrou, Daniel Dolfi, Aude Martin. Performance and limitations of dual-comb based ranging systems. Optics Express, 2022, 30 (3), pp.4005. ⟨10.1364/OE.446146⟩. ⟨hal-03777020⟩
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