Photonic neuromorphic computing is of particular interest due to its significant potential for
ultrahigh computing speed and energy efficiency. The advantage of photonic computing …

This paper outlines the roadmap towards the redefinition of the second, which was recently
updated by the CCTF Task Force created by the CCTF in 2020. The main achievements of …

Transportable strontium optical lattice clocks are developed with a fractional uncertainty of
5.5× 10− 18 for applications outside laboratories. A single clock consists of a spectroscopy …

Optical fibers have been recognized as one of the most promising host material for coherent
optical frequency transfer over thousands of kilometers. In the pioneering work, the active …

The unprecedented stability and accuracy of optical atomic clocks extend their role not only
in frequency metrology but also in fundamental physics and geodesy. In particular, excellent …

The dissemination of atomic clocks with fiber-based techniques finds application in the fields
of metrology, fundamental physics, navigation, and spectroscopy but is a challenge in terms …

Optical clocks improved the accuracy of state-of-the-art cesium clocks by more than two
orders of magnitude and enabled frequency comparison with a fractional uncertainty of one …

We present a technique for coherence transfer of laser light through a branching fiber link,
where the optical phase noise induced by environmental perturbations via the fiber link is …

The impact of noise sources in real‐world implementations of twin‐field quantum key
distribution (TF‐QKD) protocols is investigated, focusing on phase noise from photon …

We report on the realization of high-performance silica integrated 2-D lens assisted beam
steering (LABS) arrays along with the first-of-their-kind point-to-multiplepoint optical …