Quantum LiDAR based on entangled photon pairs

LiDAR technology is increasingly in demand across various fields, including autonomous driving, robotics, and aerospace, with its core focus on extracting optical signals concealed within noise. LiDAR systems have evolved through three generations: Intensity LiDAR, which analyzes light intensity waveforms; Coherent LiDAR, which leverages the phase of light; and Quantum LiDAR, which utilizes the quantum properties of light. Among these, the use of quantum entanglement presents a promising approach for enhancing signal-to-noise ratio (SNR), potentially surpassing classical methods and expanding detection range. This study aims to explore the theoretical feasibility of Quantum LiDAR and conduct preliminary experiments to assess its technical potential.