Optical frequency combs offer an unrivalled degree of frequency measurement precision
that underpins the advance of modern technology in both fundamental science and …

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

The emergence of parallel convolution-operation technology has substantially powered the
complexity and functionality of optical neural networks (ONN) by harnessing the dimension …

Microcombs have sparked a surge of applications over the past decade, ranging from optical
communications to metrology,,–. Despite their diverse deployment, most microcomb-based …

As a fundamental optical approach to interferometry, Sagnac interference has been widely
used for reflection manipulation, precision measurements, and spectral engineering in …

The rising demand for high scanning accuracy and resolution in sensors for self-driving
vehicles has led to the rapid development of parallelization in light detection and ranging …

Silicon photonics enables wafer-scale integration of optical functionalities on chip. Silicon-
based laser frequency combs can provide integrated sources of mutually coherent laser …

Integrated photonics will play a key role in quantum systems as they grow from few-qubit
prototypes to tens of thousands of qubits. The underlying optical quantum technologies can …

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 …

Low-loss photonic integrated circuits and microresonators have enabled a wide range of
applications, such as narrow-linewidth lasers and chip-scale frequency combs. To translate …