Development of stable RF/Microwave oscillators and atomic clocks for precision timing

开发稳定的射频/微波振荡器和原子钟以实现精确计时

• 批准号: 1947525
• 金额: --
• 依托单位: University of York
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2017
• 资助国家: 英国
• 起止时间: 2017 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1947525
• 关键词: Development; stable; RF; Microwave; oscillators

Brief description of the context of the research including potential impact:Timing, jitter and phase noise are critical in modern navigation, communications and advanced electronic systems and it is therefore essential to develop compact highly stable clocks. There has been extensive development in chip scale atomic clocks but there is usually a significant size/performance trade-off. This group is concentrating on the best performance that can be achieved within a volume around the size of half to 1 shoebox.Aims and objectives and novelty of the research methodology:The aim of this research project is to develop a new generation of compact low phase noise oscillators and physics packages to offer fully integrated atomic clocks offering the very best low phase noise performance and at the same time the best long-term stability (Allan Deviation).The key elements are to be researched and enhanced are:The frequency synthesiser which acts as a flywheel oscillator and includes crystal oscillators, dielectric resonator oscillators, direct digital synthesisers, and phase locked loops.The physics package which contains: lasers with microwave modulation; vapour cells (Rb and Cs); magnetic shielding and magnetic bias; temperature stabilisation and optoelectronic detection. Multiple control loops for laser stabilisation, temperature stabilisation and frequency and phase locking electronics.The work will involve developing all aspects of these clocks and extends this research groups work on oscillators and coherent population trapping.Alignment to EPSRC's strategies and research areas: The work fits directly into key EPSRC themes: 'RF and Microwave Devices' and 'Quantum Devices and Components' and will significantly enhance the UK's capability in this area.Any companies or collaborators involved: The CASE sponsorship is provided by Leonardo MW Ltd and EPSRC. The UK National Physical Laboratory (NPL) have agreed to help with measurements.The project will also stimulate collaboration with the UK Quantum Technologies (QT) Hub for Quantum Sensing and Metrology to support the development of commercial quantum sensors with Leonardo and the UK QT Hub for Quantum Communications at the University of York.

简要介绍研究背景，包括潜在影响：定时、抖动和相位噪声在现代导航、通信和先进电子系统中至关重要，因此开发紧凑、高稳定的时钟是必不可少的。芯片级原子钟已经有了广泛的发展，但通常会有很大的尺寸/性能权衡。这个小组专注于在大约一半到1个鞋盒大小的体积内达到的最佳性能。研究方法的目的和目标和新颖性：本研究项目的目的是开发新一代紧凑的低相噪振荡器和物理组件，以提供完全集成的原子钟，提供最好的低相噪性能，同时提供最好的长期稳定性(Allan偏差)。要研究和增强的关键元素是：用作飞轮振荡器的频率合成器，包括晶体振荡器、介质谐振器振荡器、直接数字合成器、和锁相环。物理包包括：微波调制激光器；蒸汽室(Rb和Cs)；磁屏蔽和偏磁；温度稳定和光电检测。用于激光稳定、温度稳定以及频率和锁相电子的多个控制回路。这项工作将涉及开发这些时钟的所有方面，并扩展该研究小组在振荡器和相干布居捕获方面的工作。与EPSRC的战略和研究领域保持一致：这项工作直接符合EPSRC的关键主题：‘RF和微波器件’和‘量子器件和组件’，并将显著提高英国在该领域的能力。任何公司或合作者：案例赞助由Leonardo MW Ltd和EPSRC提供。英国国家物理实验室(NPL)已经同意帮助测量。该项目还将促进与英国量子传感和计量学量子技术(QT)中心的合作，以支持与莱昂纳多和约克大学量子通信的英国QT中心共同开发商业量子传感器。