Compact all-fiber quantum-inspired LiDAR with over 100 dB noise rejection and single photon sensitivity.

ABSTRACT: Entanglement and correlation of quantum light can enhance LiDAR sensitivity in the presence of strong background noise. However, the power of such quantum sources is fundamentally limited to a stream of single photons and cannot compete with the detection range of high-power classical LiDAR transmitters. To circumvent this, we develop and demonstrate a quantum-inspired LiDAR prototype based on coherent measurement of classical time-frequency correlation. This system uses a high-power classical source and maintains the high noise rejection advantage of quantum LiDARs. In particular, we show that it can achieve over 100dB rejection (with 100ms integration time) of indistinguishable (with statistically identical properties in every degree of freedom) in-band noise while still being sensitive

SUBMITTER: Liu H 

PROVIDER: S-EPMC10475127 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature