Optical microcombs represent a new paradigm for generating laser frequency combs based
on compact chip-scale devices, which have underpinned many modern technological …

BACKGROUND The generation and control of coherent electromagnetic waves, such as
those provided by electronic oscillators in the radio frequency domain or lasers in the optical …

The generation of ultra-low-noise microwave and mmWave in miniaturized, chip-based
platforms can transform communication, radar and sensing systems,–. Optical frequency …

Numerous modern technologies are reliant on the low-phase noise and exquisite timing
stability of microwave signals. Substantial progress has been made in the field of microwave …

Optical frequency combs were developed nearly two decades ago to support the world's
most precise atomic clocks. Acting as precision optical synthesizers, frequency combs …

Electro-optic modulators translate high-speed electronic signals into the optical domain and
are critical components in modern telecommunication networks, and microwave-photonic …

Optical neural networks (ONNs), or optical neuromorphic hardware accelerators, have the
potential to dramatically enhance the computing power and energy efficiency of mainstream …

Optical frequency division based on bulk or fiber optics provides unprecedented spectral
purity for microwave oscillators. To extend the applications of this approach, the challenges …

As the only method for all-weather, all-time and long-distance target detection and
recognition, radar has been intensively studied since it was invented, and is considered as …

The quest towards the integration of ultra-fast, high-precision optical clocks is reflected in the
large number of high-impact papers on the topic published in the last few years. This interest …