中国激光, 2014, 41 (4): 0415001, 网络出版: 2014-03-14
相干布居囚禁原子钟光频移性能优化
Optimization of Light Frequency Shift Characteristics for Coherent Population Trapping Atomic Clock
光谱学 原子钟 光频移 数字正交解调 纵腔面发射激光器 spectroscopy atomic clock light frequency shift digital quadrature demodulation vertical cavity surface emitting laser
摘要
光频移是影响相干布居囚禁(CPT)原子钟输出频率质量的重要因素之一,优化CPT原子钟光频移特性往往需要很长的调试时间。采用现场可编程门阵列,实现了一种数字正交解调方法,能够方便地优化原子钟与光频移相关工作参数,大大缩短了优化原子钟光频移特性所需时间,减少了调试工作量。该方法应用于原子钟生产可节省产品出厂调试周期和工作量。
Abstract
Light frequency shift is one of the important factors which influence the performance of the standard frequency of a coherent population trapping (CPT) atomic clock. Usually, it takes a long time to optimize the light frequency shift behavior of a CPT atomic clock. With field programmable gate array, a digital quadrature demodulation method which considerably reduces the time and amount of work to optimize light frequency shift behavior of a CPT atomic clock is developed. Applying the method to the production of the CPT atomic clocks, the debug period and workload can be reduced.
张艳, 张奕, 尹毅, 陈杰华, 顾思洪. 相干布居囚禁原子钟光频移性能优化[J]. 中国激光, 2014, 41(4): 0415001. Zhang Yan, Zhang Yi, Yin Yi, Chen Jiehua, Gu Sihong. Optimization of Light Frequency Shift Characteristics for Coherent Population Trapping Atomic Clock[J]. Chinese Journal of Lasers, 2014, 41(4): 0415001.