压缩真空光输入和光子计数法增强Sagnac效应（英文）

发布时间：2018-01-28 13:01

  本文关键词： 陀螺 光子计数 贝叶斯理论 散粒噪声极限 海森堡极限　出处：《光子学报》2017年05期 　论文类型：期刊论文

【摘要】：压缩真空光输入和平衡零拍探测可有效增强Sagnac效应,提高陀螺精度;考虑平衡零拍探测的相位精度与相位自身相关,仅在某特定相位能达到最佳灵敏度,设计了一种基于光子计数法提取Sagnac输出相位的方案,并利用贝叶斯理论估计相位.理论分析结果表明,该方法能突破散粒噪声极限,相位精度不再受限于相位自身,且当压缩真空光和相干激光功率相同时,精度在理论上能达到海森堡极限.
[Abstract]:Compressed vacuum light input and balanced zero-beat detection can effectively enhance the Sagnac effect and improve the precision of gyroscope. Considering that the phase accuracy of balanced zero-beat detection is related to the phase itself, and the optimal sensitivity can be achieved only in a particular phase, a scheme of extracting Sagnac output phase based on photon counting method is designed. The Bayesian theory is used to estimate the phase. The theoretical analysis results show that the method can break through the shot noise limit, and the phase accuracy is no longer limited by the phase itself, and when the squeezed vacuum light and coherent laser power are the same. The accuracy can theoretically reach the Heisenberg limit.
【作者单位】： 空军工程大学信息与导航学院;
【基金】：The National Natural Science Foundation of China(Nos.61573372,61603413)
【分类号】：O43
【正文快照】： Foundation item:The National Natural Science Foundation of China(Nos.61573372,61603413)1-3002150navigation without the external signals,which is an essential technical support for deep space exploration,deep sea exploration and the military confrontation，

本文编号：1470835