Two decades after its invention, the classic self-referenced frequency comb laser is an
unrivalled ruler for frequency, time and distance metrology owing to the rigid spacing of its …

Free-space optical communications are poised to alleviate the data-flow bottleneck
experienced by spacecraft as traditional radio frequencies reach their practical limit. While …

相比于传统基于声纳, 光缆的水下频率传递技术, 水下激光频率传递技术具有更高的灵活性.
本文首先介绍了水下激光频率传递技术的背景与意义, 同时简要展示了国内外科研机构在水下 …

Recent advances in optical atomic clocks and optical time transfer have enabled new
possibilities in precision metrology for both tests of fundamental physics and timing …

We summarise the discussions at a virtual Community Workshop on Cold Atoms in Space
concerning the status of cold atom technologies, the prospective scientific and societal …

A global network of optical atomic clocks will enable unprecedented measurement precision
in fields including tests of fundamental physics, dark matter searches, geodesy, and …

Orbital angular momentum (OAM) can be employed as information carrier in optical
communications, which include OAM multicasting where separate OAM beams are …

Erbium-doped fibre lasers exhibit high coherence and low noise as required for fibre-optic
sensing, gyroscopes, LiDAR and optical frequency metrology. Endowing erbium-based gain …

Geopotential and orthometric height differences between distant points can be measured via
timescale comparisons between atomic clocks. Modern optical atomic clocks achieve …

Stabilizing a frequency comb to an ultra-stable optical frequency reference requires a
multitude of optoelectronic peripherals that have to operate under strict ambient control …