Long-range frequency-modulated continuous-wave LiDAR employing wavelength-swept optical frequency comb

Abstract

We propose a FMCW LiDAR using a wavelength-swept optical frequency comb, which overcomes the ranging limitation caused by the receiver bandwidth. We have established the fundamental part of our proposal and conducted proof-of-concept ranging experiments. With optical fiber transmission for emulating long distance free-space propagation, we have succeeded in ranging corresponding to 1605-m free-space propagation with a 10-MHz FMCW receiver.