JPL Ultrastable Trapped Ion Atomic Frequency Standards
JPL Ultrastable Trapped Ion Atomic Frequency Standards
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DOI：
10.1109/tuffc.2016.2572701
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发表时间：
2016-05
期刊：
影响因子：
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通讯作者：
E. Burt;L. Yi;B. Tucker;R. Hamell;R. Tjoelker
中科院分区：
文献类型：
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作者：
E. Burt;L. Yi;B. Tucker;R. Hamell;R. Tjoelker
最近，喷气推进实验室（JPL）的室温俘获离子原子钟的开发主要集中在三个方向：1)超稳定原子钟，通常用于地面应用，强调最终的稳定性能和自主计时；2)要求严格遵守尺寸、重量和功率要求的空间飞行应用的新原子钟技术；还有微型钟。在本文中，我们专注于第一个方向，并提出了一种新的超稳定时钟L10的设计和初步结果，该时钟在两周的时间内实现了4.5 × 10-14/τ1/2的短期稳定性和无显著漂移的初始测量，不确定度为2.4 × 10-16/天。
Recently, room temperature trapped ion atomic clock development at the Jet Propulsion Laboratory (JPL) has focused on three directions: 1) ultrastable atomic clocks, usually for terrestrial applications emphasizing ultimate stability performance and autonomous timekeeping; 2) new atomic clock technology for space flight applications that require strict adherence to size, weight, and power requirements; and 3) miniature clocks. In this paper, we concentrate on the first direction and present a design and the initial results from a new ultrastable clock referred to as L10 that achieves a short-term stability of 4.5 × 10-14/τ1/2 and an initial measurement of no significant drift with an uncertainty of 2.4 × 10-16/day over a two-week period.