光学精密工程2023，Vol.31Issue(23)：3426-3437,12.DOI:10.37188/OPE.20233123.3426
轻小型量子跟踪仪接收望远镜
Lightweight and miniaturized quantum tracker receiving telescope
摘要
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 ap-plication scenario requirements of quantum tracking instruments.A detailed comparative analysis was per-formed 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 Φ280 quantum tracker receiving telescope was designed.The optical design results of RC telescope of F5 were obtained.Using RSA-6061 microcrystalline alumi-num alloy as the structural material for the telescope mirror,coupled with an integrated hard aluminum al-loy 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 dy-namic 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Key words
quantum communication/lightweight and miniaturized/quantum tracker/high rigidity/quantum key distribution分类
机械工程引用本文复制引用
孙景旭,费强,周峰,陈太喜,谢虹波,王芳,隋晓东..轻小型量子跟踪仪接收望远镜[J].光学精密工程,2023,31(23):3426-3437,12.基金项目
广东省重点领域研发计划资助项目(No.2018B030328001) （No.2018B030328001）
