Simplified correlation-domain LiDAR without long delay fiber

Abstract

Light detection and ranging (LiDAR) measures distance by emitting light onto targets and analyzing reflections. In addition to conventional LiDAR systems based on time-of-flight and frequency-modulated continuous-wave methods, correlation-domain LiDAR has been developed but with some challenges in miniaturization due to the use of a long delay fiber. This study addresses this issue by specifying modulation conditions and removing the delay fiber. We then demonstrate the distance measurement by this simplified correlation-domain LiDAR. This result enhances the potential of integrating correlation-domain LiDAR into various applications.