IOTA: Compact Ion Clock for Precision Timing Applications

IOTA：用于精密计时应用的紧凑型离子时钟

• 批准号: EP/R043566/1
• 负责人: Matthias Keller
• 金额: $ 31.96万
• 依托单位: University of Sussex
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2018
• 资助国家: 英国
• 起止时间: 2018 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FR043566%2F1
• 关键词: IOTA; Compact; Ion; Clock; Precision

Atomic clocks have a wide range of applications from communication, navigation to trading and scientific research. Systems based on trapped atomic ions promise significantly improved accuracy compared to currently commercially available systems. Accuracies of 10-18 have been demonstrated with such systems in research labs. However, due to their complexity, power consumption and environmental requirements, these systems are far from portable. To generate an electronic reference signal optical atomic clocks contain an optical reference, a laser stabilised to an optical transition within an atomic species, and an optical frequency comb. The two research groups at the University of Sussex are developing demonstrators for a portable atomic reference system based on trapped calcium ions and a micro-comb system. This project aims to address two technological challenges within the two atomic clock subsystems. To improve the systems' compactness, robustness and weight, the two research groups join forces with MSquared Lasers, a leading company in optical technology development. In addition, the commercial exploitation of the atomic clock system will be explored with focus on system integrators.

原子钟有着广泛的应用，从通信、导航到贸易和科学研究。与目前商业上可用的系统相比，基于捕获原子离子的系统有望显著提高精度。这样的系统已经在研究实验室中证明了10-18的准确性。然而，由于它们的复杂性、功耗和环境要求，这些系统远不是便携式的。为了产生电子参考信号，光学原子钟包含光学参考、稳定到原子物种内的光学跃迁的激光器和光学频率梳。苏塞克斯大学的两个研究小组正在开发一种基于捕获的钙离子和微梳系统的便携式原子参考系统的演示。该项目旨在解决两个原子钟子系统内的两个技术挑战。为了提高系统的紧凑性、坚固性和重量，这两个研究小组与光学技术开发的领先公司mSquared Laser联手。此外，还将探讨原子钟系统的商业开发，重点是系统集成商。

项目成果

Laser cavity-soliton microcombs

• DOI: 10.1038/s41566-019-0379-5
• 发表时间: 2019-06-01
• 期刊: NATURE PHOTONICS
• 影响因子: 35
• 作者: Bao, Hualong;Cooper, Andrew;Pasquazi, Alessia
• 通讯作者: Pasquazi, Alessia

Laser Cavity-Soliton Micro-Combs

激光腔孤子微梳

• DOI: 10.48550/arxiv.1902.09930
• 发表时间: 2019
• 作者: Bao H

Thermo-optical pulsing in a microresonator filtered fiber-laser: a route towards all-optical control and synchronization

微谐振器滤波光纤激光器中的热光脉冲：通向全光控制和同步的途径

• DOI: 10.48550/arxiv.1903.09095
• 发表时间: 2019
• 作者: Rowley M

Thermo-optical pulsing in a microresonator filtered fiber-laser: a route towards all-optical control and synchronization.

• DOI: 10.1364/oe.27.019242
• 发表时间: 2019-03
• 期刊: Optics express
• 影响因子: 3.8
• 作者: M. Rowley;B. Wetzel;L. Di Lauro;J. S. T. Gongora;Hualong Bao;J. Silver;L. Del Bino;P. D. Haye;M. Peccianti;A. Pasquazi

Optical multi-stability in a nonlinear high-order microring resonator filter

• DOI: 10.1063/5.0002941
• 发表时间: 2020-05
• 期刊: APL Photonics
• 影响因子: 5.6
• 作者: Li Jin;L. Di Lauro;A. Pasquazi;M. Peccianti;D. Moss;R. Morandotti;B. Little;S. Chu