一种微型CPT铯原子钟的设计  

Design of A Miniature CPT Cesium Atomic Clock

作　　者：翟浩[1,2] 廉吉庆 陈大勇[1,2] ZHAI Hao LIAN Ji- qing CHEN Da- yong(Lanzhou Institute of Physics,Lanzhou 730000,China Science and Technology on Vacuum Technology and Physics Laboratory,Lanzhou 730000,China)

机构地区：[1]兰州空间技术物理研究所,兰州730000 [2]真空技术与物理重点实验室,兰州730000

出　　处：《空间电子技术》2017年第2期25-28,42,共5页Space Electronic Technology

摘　　要：被动型CPT原子钟是一种可实现微型化和芯片化设计的原子钟。针对微小卫星和地面手持设备的应用需求,提出了一种微型CPT铯原子钟的设计方案。分析了基于^(133)Cs的CPT原子钟物理设计的优点。完成了原理样机的设计实现与测试,原理样机的体积小于100 ml、功耗小于2 W、稳定度指标优于6×10^(-11)τ^(-1/2)(1~100 s)。最后,对芯片化设计及微型CPT原子钟应用进行了展望。Passive coherent population trapping（ CPT） atomic clock can be designed as a miniature and even chip-scale atomic clock.According to application requirements of micro-satellites and man-portable instruments on the ground,the de-sign of a CPT Cs atomic clock was proposed.The advantages of physics design of the CPT atomic clock based on 133Cs were analyzed.The prototype of the clock was designed and implemented.The test results indicate the volume less than 100 ml,the power dissipation less than 2 W and the stability superior to 6×10^-11τ^-1/2（1~100 s）.At last the prospect of the design of chip scale atomic clock and the applications of miniature CPT atomic clock was reviewed.

关 键 词：COHERENT POPULATION trapping(CPT) 微型原子钟 设计 微小卫星 

分 类 号：V443[航空宇航科学与技术—飞行器设计]