芯片相干布居囚禁原子钟  

Chip-scale coherent population trapping atomic clock

作　　者：陈杰华 CHEN Jiehua(Innovation Academy for Precision Measurement Science and Technology,Chinese Academy of Sciences,Wuhan 430071,China;Wuhan Institute of Quantum Technology,Wuhan 430206,China)

机构地区：[1]中国科学院精密测量科学与技术创新研究院,湖北武汉430071 [2]武汉量子技术研究院,湖北武汉430206

出　　处：《计测技术》2023年第3期53-59,共7页Metrology & Measurement Technology

基　　金：国家重点研发计划(2018YFB2002400)。

摘　　要：对基于相干布居囚禁(CPT)态原子的芯片级原子钟技术进行了综述,包括CPT原子钟的基本原理、Ramsey-CPT原子钟技术、CPT原子钟的微小型化方案、CPT芯片原子钟的发展等,对其中的关键技术:激光频率调制、Ramsey技术、左右旋圆偏振光泵浦(push-pull)、激光和微波稳频以及微光机电加工系统(MOEMS)等技术进行分析讨论,最终总结出CPT原子钟向着低功耗、芯片化和时钟精度高的方向发展。The chip-scale atomic clock technology based on coherent population trapping(CPT) atoms is reviewed,including the basic principle of CPT atomic clock,Ramsey-CPT atomic clock technology,schemes of CPT atomic clock suitable for miniaturization,and the development and current status of the chip-scale CPT atomic clock.The key technologies,such as laser frequency modulation,Ramsey technology,left and right circularly polarized light pumping(push-pull),laser and microwave frequency stabilization,and micro optical-electro-mechanical system(MOEMS),are analyzed and discussed.Finally,it is concluded that the CPT atomic clock is developing in the direction of low power consumption,chip-based and high clock precision.

关 键 词：微波原子钟 相干布居囚禁 电磁感应透明 微光机电加工 

分 类 号：TB939[一般工业技术—计量学]