本文關(guān)鍵詞： 壓縮光 量子激光雷達(dá) 相干探測 壓縮真空注入 激光雷達(dá)　出處：《光子學(xué)報》2017年05期 　論文類型：期刊論文

【摘要】：利用Wigner函數(shù)對真空態(tài)、單光子態(tài)、壓縮態(tài)在相空間的噪聲分布進(jìn)行仿真,并系統(tǒng)分析了基于壓縮光的量子相干激光雷達(dá)和壓縮光注入式量子激光雷達(dá).研究表明,相比經(jīng)典激光雷達(dá),較高壓縮度有利于量子相干激光雷達(dá)探測信噪比的提升,理論上8dB的壓縮度可以使信噪比提高6.25倍;而壓縮光注入式量子激光雷達(dá)系統(tǒng)的空間分辨率主要取決于真空壓縮光的壓縮度和無噪聲相敏放大系統(tǒng)的增益.由于壓縮光對探測信噪比的提升作用,量子激光雷達(dá)在微弱信號探測和高分辨率成像領(lǐng)域具有顯著優(yōu)勢.
[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.
【作者單位】： 北京華航無線電測量研究所;
【基金】：The Innovation Program of Corporation(No.xxxxxx)
【分類號】：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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1 吳岡,黃永仁;雙Z脈沖實現(xiàn)多量子相干選擇檢測[J];波譜學(xué)雜志;1988年03期

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