压缩真空注入超灵敏干涉型量子激光雷达

发布时间：2018-06-20 02:44

本文选题：压缩真空态注入 + 超灵敏度　；参考：《红外与激光工程》2017年07期

【摘要】：干涉型激光雷达是通过相位干涉检测实现高精度目标距离探测的设备,传统干涉型激光雷达相位探测灵敏度受到标准量子极限的限制,从而限制了测距精度。为了进一步打破极限,提高精度,提出了基于压缩真空态注入的相位超灵敏度干涉型量子激光雷达方案,可以使相位灵敏度突破标准量子极限,并分别推导了Z探测法、强度差探测法和奇偶探测法情况下的相位灵敏度,随后,进行仿真计算,并对性能的提升进行比较与分析。最后,在灵敏度最好的奇偶探测法的基础上,建立了存在传输损耗时的相位灵敏度模型,讨论了实现超灵敏度允许的最大传输损耗。
[Abstract]:Interferometric lidar is a high precision target range detection equipment through phase interferometric detection. The sensitivity of traditional interferometric laser radar phase detection is limited by the standard quantum limit, which limits the ranging accuracy. In order to further break the limit and improve the precision, a phase super-sensitive interferometric quantum lidar scheme based on squeezed vacuum state injection is proposed, which can make the phase sensitivity exceed the standard quantum limit, and the Z detection method is deduced respectively. The phase sensitivity of the intensity difference detection method and the parity detection method is compared and analyzed. Then the simulation calculation is carried out and the performance improvement is compared and analyzed. Finally, based on the odd-even detection method with the best sensitivity, the phase sensitivity model with transmission loss is established, and the maximum transmission loss is discussed.
【作者单位】：哈尔滨工业大学物理系;天津津航技术物理研究所;
【基金】：国家高技术研究发展计划(JZ20150174)
【分类号】：TN958.98

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