Improving Satellite Time Service Accuracy Based on Microwave-Optical Wave Entangled Signals

被引：0

作者：

Liu Yongfei ^{[1
]}

Yang Chunyan ^{[1
]}

Zhao Luhan ^{[1
]}

Wei Tianli ^{[1
]}

Wu Dewei ^{[1
]}

Ren Zhaoheng ^{[1
]}

机构：

[1] Air Force Engn Univ, Informat & Nav Coll, Xian 710077, Shaanxi, Peoples R China

来源：

LASER & OPTOELECTRONICS PROGRESS | 2023年 / 60卷 / 05期

关键词：

quantum optics; satellite time service; cavity electro; opto-mechanical converter; microwave-optical wave; entangled signal; time service accuracy;

D O I：

10.3788/LOP221003

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The satellite time service technology is limited by the measurement accuracy of the classical radio signal, and the time service accuracy can only reach the ns level. In this paper, a satellite time service scheme based on microwaveoptical wave-entangled signals is proposed. The advantages of long-distance transmission of microwave signals and singlephoton detection of optical wave signals are effectively combined using a cavity electro-opto-mechanical converter. The phase difference is calculated using a phase-conjugating processor to obtain accurate time-difference information. Through theoretical analysis and simulations, it is demonstrated that even if the quantum signal is in low entanglement, the proposed scheme can improve the satellite time service accuracy to the ps level.

引用

页数：8