Silicon photonics has gained great success mainly due to the promise of realizing compact
devices in high volume through the low-cost foundry model. It is burgeoning from laboratory …

Recent developments in chip-based frequency-comb technology demonstrate that comb
devices can be implemented in applications where photonic integration and power …

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

The foundry development of integrated photonics has revolutionized today's optical
interconnect and datacenters. Over the last decade, we have witnessed the rising of silicon …

The ability to generate lower-noise microwaves has greatly advanced high-speed, high-
precision scientific and engineering fields. Microcombs have high potential for generating …

Soliton microcombs are a promising new approach for photonic-based microwave signal
synthesis. To date, however, the tuning rate has been limited in microcombs. Here, we …

Dissipative Kerr soliton (DKS) frequency combs—also known as microcombs—have
arguably created a new field in cavity nonlinear photonics, with a strong cross-fertilization …

Microresonator soliton frequency combs offer unique flexibility in synthesizing microwaves
over a wide range of frequencies, while their phase noise is currently limited by thermal …

Dissipative Kerr-soliton combs are laser pulses regularly sustained by a localized solitary
wave on top of a continuous-wave background inside a nonlinear resonator. Usually, the …