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Lightweight and miniaturized quantum tracker receiving telescope
- Optics and Precision Engineering Vol. 31, Issue 23, Pages: 3426-3437(2023)
- 作者机构：
1.季华实验室，广东 佛山 528200
2.中国人民解放军96035部队，吉林 吉林 132101
3.中国科学院大学 北京 100049
- 作者简介：
- 基金信息：
DOI：10.37188/OPE.20233123.3426
CLC：
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孙景旭,费强,周峰等.轻小型量子跟踪仪接收望远镜[J].光学精密工程,2023,31(23):3426-3437.
SUN Jingxu,FEI Qiang,ZHOU Feng,et al.Lightweight and miniaturized quantum tracker receiving telescope[J].Optics and Precision Engineering,2023,31(23):3426-3437.
孙景旭,费强,周峰等.轻小型量子跟踪仪接收望远镜[J].光学精密工程,2023,31(23):3426-3437. DOI： 10.37188/OPE.20233123.3426.
SUN Jingxu,FEI Qiang,ZHOU Feng,et al.Lightweight and miniaturized quantum tracker receiving telescope[J].Optics and Precision Engineering,2023,31(23):3426-3437. DOI： 10.37188/OPE.20233123.3426.
摘要
随着量子保密通信网络及产业化发展，轻小型化接收望远镜满足量子跟踪仪规模化和便携式的多应用场景需求。对满足接收望远镜的技术体制进行了对比分析，确定了RC+小像元+量子模块的光学系统形式，采用小,F,数+微小像元的技术体制。设计了全铝一体化结构的φ280量子跟踪仪接收望远镜，F5的RC望远镜采用RSA-6061微晶铝合金作为反射镜的结构材料，配合一体化硬铝合金高刚性结构，静力学（重力变形和温度变形）仿真分析结果满足近衍射极限成像和高效率量子接收要求，动力学仿真分析结果表明，一阶模态为91 Hz，具有足够高的动态刚度和安全冗余。集成测试结果表明：望远镜的中心视场波像差RMS为,λ,/14.7，5个视场系统波像差均优于,λ,/12.7，可以确保近衍射极限高质量信标成像，奈奎斯特频率处的光学传递函数为0.15；HV+,-,四个偏振态的平均偏振对比度为454，全系统效率为51.93%，可以高质量接收量子密钥；,-,25 ℃和+30 ℃外场恒星成像实验验证了系统可以稳定、高质量提取质心用于脱靶量闭环；与“墨子号”星地量子密钥分发实验成码为92.9 kb，误码率为1.18%，能够实现高效率量子接收。
Abstract
With the development of quantum secure communication networks and industrialization， there is an urgent need for lightweight and miniaturized receiving telescopes for scalable and portable multiple application scenario requirements of quantum tracking instruments. A detailed comparative analysis was performed on the technical systems that meet the requirements of receiving telescopes， the optical system form of the RC+micropixel+quantum module was determined， and the technical system of a small F#+micro pixel was adopted. An all-aluminum ,Φ,280 quantum tracker receiving telescope was designed. The optical design results of RC telescope of F5 were obtained. Using RSA-6061 microcrystalline aluminum alloy as the structural material for the telescope mirror， coupled with an integrated hard aluminum alloy of high-rigidity structure， the static （gravity and temperature deformation） simulation analysis results met the requirements of near-diffraction limit imaging and high-efficiency quantum reception. The dynamic simulation analysis results demonstrated that the first mode was 91 Hz， which had a sufficiently high dynamic stiffness and safety redundancy. The integration test results show that： The wave aberration RMS of the central field of view of the telescope is λ/14.7， and the wavefront aberration of the five field of view systems is better than λ/12.7， which ensured high-quality beacon imaging near the diffraction limit. The measured optical transfer function at Nyquist frequency is 0.15； The average polarization contrast of the four polarization states （HV+,-,） of the telescope is 454， along with an overall system efficiency of 51.93%， which allows high-quality quantum key reception； The experimental results of external stellar imaging at 25 and +30 ℃ verified the stability of the system， which can be used for high-quality centroid extraction for off-target closed loop； The QKD experiment with Mozi obtains 92.9 kb codes， and the total bit error rate is 1. 18%， allowing high-efficiency quantum reception.
关键词
量子通信轻小型量子跟踪仪高刚性量子密钥分发
Keywords
quantum communicationlightweight and miniaturizedquantum trackerhigh rigidityquantum key distribution
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