Frequency-comb-based digital clockwork for next-generation optical clocks

用于下一代光学时钟的基于频率梳的数字时钟装置

• 批准号: RGPIN-2016-05882
• 负责人: Deschênes, JeanDaniel
• 金额: $ 2.26万
• 依托单位: Université Laval
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=637241
• 关键词: Frequency; comb; based; digital; clockwork

This proposal aims to develop optical clockworks, the systems used to read out the time from an optical clock. An optical clock uses a very stable laser, referenced to an isolated atom’s or multiple atoms’ transition frequency to provide very fine and accurate subdivisions of time. Its precision comes from the very high frequency of oscillation of light compared to usual radio frequency oscillators, but this also makes it difficult to read the clock because the frequency is too high for conventional electronic means. Since these optical clocks already enable better time measurements and are likely to soon replace radio frequency atomic clock in time and frequency standards, it is very important that we develop the basic technology to support them.

该提案旨在开发光学钟表，用于从光学时钟中读取时间的系统。光学时钟使用非常稳定的激光，参考孤立原子或多个原子的跃迁频率，以提供非常精细和准确的时间细分。与通常的射频振荡器相比，其精度来自非常高的光振荡频率，但这也使得难以读取时钟，因为频率对于传统的电子装置来说太高了。由于这些光学钟已经能够实现更好的时间测量，并且很可能很快在时间和频率标准中取代射频原子钟，因此我们开发支持它们的基本技术非常重要。