Progress in Atomic Fountains at LNE-SYRTE
Progress in Atomic Fountains at LNE-SYRTE
复制标题
DOI：
10.1109/tuffc.2012.2208
复制
发表时间：
2012-03-01
影响因子：
3.6
通讯作者：
Bize, Sebastien
中科院分区：
文献类型：
--
作者：
Guena, Jocelyne;Abgrall, Michel;Bize, Sebastien
我们给出了一个概述的工作，在过去的五年中，与国家计量等d 'Essais-Systemes参考Temps-Espace（LNE SYRTE）喷泉合奏。在描述了由FO 1、FO 2和FOM三个喷泉组成的时钟系综以及最新进展之后，我们回顾了几种系统频移的最新研究。这包括分布式腔相移，我们评估的FO 1和FOM喷泉，应用我们最近的工作FO 2的技术。我们还报告了三个喷泉的微波透镜频移的计算，审查的黑体辐射移位的状态，并总结了最近的实验工作，以控制微波泄漏和杂散相位扰动。我们提供当前准确度预算。我们还描述了在时间和频率计量学的几个应用：喷泉比较，国际原子时的校准，二次表示的SI秒的Rb-87超精细频率的基础上，光学频率的绝对测量，T2 L2卫星激光链路的测试，并审查LNE SYRTE喷泉合奏的基础物理应用。最后，我们给出了使用FOM移动喷泉进行PHARAO冷原子空间钟测试的总结。
We give an overview of the work done with the Laboratoire National de Metrologie et d'Essais-Systemes de Reference Temps-Espace (LNE-SYRTE) fountain ensemble during the last five years. After a description of the clock ensemble, comprising three fountains, FO1, FO2, and FOM, and the newest developments, we review recent studies of several systematic frequency shifts. This includes the distributed cavity phase shift, which we evaluate for the FO1 and FOM fountains, applying the techniques of our recent work on FO2. We also report calculations of the microwave lensing frequency shift for the three fountains, review the status of the blackbody radiation shift, and summarize recent experimental work to control microwave leakage and spurious phase perturbations. We give current accuracy budgets. We also describe several applications in time and frequency metrology: fountain comparisons, calibrations of the international atomic time, secondary representation of the SI second based on the Rb-87 hyperfine frequency, absolute measurements of optical frequencies, tests of the T2L2 satellite laser link, and review fundamental physics applications of the LNE-SYRTE fountain ensemble. Finally, we give a summary of the tests of the PHARAO cold atom space clock performed using the FOM transportable fountain.