Realization of quantum lidar imaging system

Siwen Bi; Hailong Zhu; Jingshi Du; Zhiying Zhou; Hao Chen; Min Shen; Shoukai Zhang; Zhe Sheng

doi:10.1117/12.2568284

20 August 2020 Realization of quantum lidar imaging system

Siwen Bi, Hailong Zhu, Jingshi Du, Zhiying Zhou, Hao Chen, Min Shen, Shoukai Zhang, Zhe Sheng

Proceedings Volume 11502, Infrared Remote Sensing and Instrumentation XXVIII; 1150204 (2020) https://doi.org/10.1117/12.2568284
Event: SPIE Optical Engineering + Applications, 2020, Online Only

Abstract

As a combination of laser technology and modern photoelectric detection technology, lidar (laser radar) has notable advantages compared with traditional radar such as high resolution, strong anti-interference ability, and good low-altitude detection performance. However, with continuous application in aerospace, military, artificial intelligence and other fields, lidar has reached the limits of classical physics and can’t meet the requirements in detection, measurement and imaging. In order to break the bottleneck, worldwide researchers have developed a new type of radar-quantum lidar, which is based on the combination of traditional radar technology and quantum information technology. Its main principle is to get imaging through squeezed light that is below the noise limit of classical physics and then manipulated by the quantum state to achieve imaging with higher quality. Quantum lidar in the paper injects quantum squeezed light to receiver end and uses quantum phase-sensitive amplifier technology to compensate the photon loss that caused by insufficient quantum power to further improve resolution. In the squeezed light, the generation of quantum squeezed light and detection theory are studied, the resonant cavity locking principle and balanced homodyne detection principle are analyzed, and a mode cleaner with narrow line width is designed to improve beam transverse mode quality of laser and filter high frequency noise. In order to reduce quantum noise and improve resolution, quantum lidar imaging system is developed and the theoretically derivation and numerical simulation results show that the resolution of quantum lidar imaging is 1.71 times higher than that of lidar imaging.

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Siwen Bi, Hailong Zhu, Jingshi Du, Zhiying Zhou, Hao Chen, Min Shen, Shoukai Zhang, and Zhe Sheng "Realization of quantum lidar imaging system", Proc. SPIE 11502, Infrared Remote Sensing and Instrumentation XXVIII, 1150204 (20 August 2020); https://doi.org/10.1117/12.2568284

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KEYWORDS

LIDAR

Imaging systems

Quantum physics

Image resolution

Signal to noise ratio

Optical amplifiers

Quantum optics

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