Enhancement of quantum-enhanced LADAR receiver in nonideal phase-sensitive amplification

被引：1

作者：

Zhang, Shuan ^{[1
,2
]}

Liu, Hongjun ^{[1
,3
]}

Huang, Nan ^{[1
]}

Wang, Zhaolu ^{[1
]}

Han, Jing ^{[1
]}

机构：

[1] Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Shaanxi, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100084, Peoples R China

[3] Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Shanxi, Peoples R China

来源：

EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS | 2017年 / 79卷 / 02期

关键词：

NOISELESS AMPLIFICATION; OPTICAL-IMAGES; AMPLIFIERS; IMPROVEMENT; MICROSCOPY; MEDIA; LIGHT; FIBER;

D O I：

10.1051/epjap/2017170113

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The phase-sensitive amplification (PSA) with an injected squeezed vacuum field is theoretically investigated in quantum-enhanced laser detection and ranging (LADAR) receiver. The theoretical model of the amplified process is derived to investigate the quantum fluctuations in detail. A new method of mitigating the unflat gain of nonideal PSA is proposed by adjusting the squeezed angle of the squeezed vacuum field. The simulation results indicate that signal-noise ratio (SNR) of system can be efficiently improved and close to the ideal case by this method. This research will provide an important potential in the applications of quantum-enhanced LADAR receiver.

引用

页数：6

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