Photonic sources of pristine optical and microwave carriers

原始光学和微波载体的光子源

• 批准号: RGPIN-2020-04494
• 负责人: Hall, Trevor
• 金额: $ 2.84万
• 依托单位: University of Ottawa
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=717035
• 关键词: Photonic; sources; pristine; optical; microwave

Time, equivalently frequency, is the most precisely measured of all physical quantities. Almost all domains of physics and engineering rely on time and frequency metrology and hence on a reference oscillator. The random fluctuations of the phase of an oscillator limit the precision of time and frequency measurements. Research is proposed on optoelectronic oscillator (OEO) as a pure source of microwave carriers. The principal challenge is to achieve world-class performance attributes in combination. The goal is a tunable compact OEO with exceptionally low noise and high long-term stability targeting silicon photonic integration in one package. The strategy is to trade aggressively reduced noise for more compact components. The performance of novel oscillator architectures combined with noise suppression methods enable by an original solution to the tuning of interferometers and oscillators will be evaluated through theoretical modeling, verification by simulation and corroboration by test & measurement of discrete and integrated prototypes. Laser noise drives many of the noise mechanisms within an OEO. Serendipitously, both laser and OEO are examples of the same class of oscillator so similar noise reduction techniques to may be applied to lasers for OEO and other applications. There is a strong expectation of the generation of new knowledge in areas as diverse as: component noise mechanisms, noise measurement, noise suppression methods, automatic tuning control, coupled oscillator dynamics; and optoelectronic and electro-optic device hybridisation with silicon photonics. The noise and long-term stability of the system oscillator / clock is of major importance in applications such as optical & wireless communications, high speed digital electronics, radar & lidar, and astronomy. The development of such a source would have major impact, for example, on weather radar where very weak returns with small Doppler shifts relative to the carrier must be detected. With ever-increasing clock frequencies being used in digital systems, a fully integrated OEO would constitute a breakthrough in ICT. The research would also impact the generation of mm waves for 5G wireless and research into sources of THz radiation. The results of this program will benefit Canada by supporting the growth in ICT critical to a knowledge-based digital economy. It will contribute directly to wealth creation through new products and processes with a market impact. It will also support Canada's leading position in ICT by training of highly qualified personnel with transferable skills, which is the most effective means of knowledge transfer from academia to industry.

时间，相当于频率，是所有物理量中测量最精确的。几乎所有的物理和工程领域都依赖于时间和频率计量，因此也依赖于基准振荡器。振荡器相位的随机波动限制了时间和频率测量的精度。提出了利用光电振荡器（OEO）作为纯微波载波源的研究思路。主要的挑战是实现世界级的性能属性组合。目标是在一个封装中实现可调谐紧凑型OEO，具有极低的噪声和高的长期稳定性，目标是硅光子集成。该策略是积极降低噪音，以换取更紧凑的组件。新型振荡器架构与噪声抑制方法相结合的性能将通过理论建模、模拟验证以及离散和集成原型的测试和测量来评估，这些方法可以通过干涉仪和振荡器调谐的原始解决方案来实现。激光噪声驱动OEO内的许多噪声机制。偶然地，激光器和OEO都是同一类振荡器的示例，因此类似的降噪技术可以应用于OEO和其他应用的激光器。有一个强烈的期望，在不同的领域产生的新知识：组件噪声机制，噪声测量，噪声抑制方法，自动调谐控制，耦合振荡器动力学;和光电和电光器件与硅光子杂交。系统振荡器/时钟的噪声和长期稳定性在光学和无线通信、高速数字电子、雷达和激光雷达以及天文学等应用中至关重要。这种辐射源的发展将对气象雷达等产生重大影响，因为气象雷达必须探测到相对于载体的多普勒频移很小的微弱回波。随着数字系统中使用的时钟频率不断增加，一个完全集成的开放式办公室将是信通技术的一个突破。该研究还将影响5G无线毫米波的产生和太赫兹辐射源的研究。该计划的结果将通过支持对知识型数字经济至关重要的ICT的增长而使加拿大受益。它将通过具有市场影响力的新产品和新工艺直接促进财富创造。它还将通过培训具有可转让技能的高素质人员，支持加拿大在信息和通信技术方面的领先地位，这是从学术界向工业界转让知识的最有效手段。