基于压缩光的量子激光雷达技术（英文）

发布时间：2018-01-31 22:02

本文关键词： 压缩光量子激光雷达相干探测压缩真空注入激光雷达　出处：《光子学报》2017年05期 　论文类型：期刊论文

【摘要】：利用Wigner函数对真空态、单光子态、压缩态在相空间的噪声分布进行仿真,并系统分析了基于压缩光的量子相干激光雷达和压缩光注入式量子激光雷达.研究表明,相比经典激光雷达,较高压缩度有利于量子相干激光雷达探测信噪比的提升,理论上8dB的压缩度可以使信噪比提高6.25倍;而压缩光注入式量子激光雷达系统的空间分辨率主要取决于真空压缩光的压缩度和无噪声相敏放大系统的增益.由于压缩光对探测信噪比的提升作用,量子激光雷达在微弱信号探测和高分辨率成像领域具有显著优势.
[Abstract]:Wigner function is used to simulate the noise distribution of vacuum state, single photon state and squeezed state in the phase space. The quantum coherent lidar based on compressed light and the compressed optical injection quantum laser radar are systematically analyzed. The higher squeezing degree is beneficial to the improvement of SNR in quantum coherent lidar detection. Theoretically, the SNR can be increased by 6.25 times with 8dB compression degree. The spatial resolution of the compressed optical injection quantum lidar system mainly depends on the compression degree of the vacuum compression light and the gain of the noiseless phase-sensitive amplification system, because of the enhancement of the signal-to-noise ratio of the compressed light to detect the signal to noise ratio. Quantum lidar has significant advantages in weak signal detection and high resolution imaging.
【作者单位】：北京华航无线电测量研究所;
【基金】：The Innovation Program of Corporation(No.xxxxxx)
【分类号】：TN958.98
【正文快照】： Foundation item:The Innovation Program of Corporation(No.xxxxxx)1-1007250researchers mostly focus on studies of the quantum lidar and the quantum technology is essentiallyexpected to improve the performance of the classical lidar[2-6].It is known that th

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