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arXiv · 2106.05394

Simple approach for extending the ambiguity-free-range of dual-comb ranging

Jakob Fellinger·Georg Winkler·P. E. Collin Aldia·Aline S. Mayer·Valentina Shumakova·Lukas W. Perner·Vito F. Pecile·Tadeusz Martynkien·Pawel Mergo·Grzegorz Sobo·Oliver H. Heckl
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Abstract

Dual-comb (DC) ranging is an established method for high-precision and high-accuracy distance measurements. It is, however, restricted by an inherent length ambiguity and the requirement for complex control loops for comb stabilization. Here, we present a simple approach for expanding the ambiguity-free measurement length of dual-comb ranging by exploiting the intrinsic intensity modulation of a single-cavity dualcolor DC for simultaneous time-of-flight a nd D C distance measurements. This measurement approach enables the measurement of distances up to several hundred km with the precision and accuracy of a dualcomb interferometric setup while providing a high data acquisition rate (~2 kHz) and requiring only the repetition rate of one of the combs to be stabilized.

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Jakob Fellinger, Georg Winkler, P. E. Collin Aldia, Aline S. Mayer, Valentina Shumakova, Lukas W. Perner, Vito F. Pecile, Tadeusz Martynkien, Pawel Mergo, Grzegorz Sobo, Oliver H. Heckl. 2021-06-08. Simple approach for extending the ambiguity-free-range of dual-comb ranging. https://doi.org/10.1364/ol.427816

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