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

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 …

Over the past decade, optical frequency combs generated by high-Q microresonators, or
optical microcombs, which feature compact device footprints, low power consumption, and …

Femtosecond laser-based generation of radio frequency signals has produced astonishing
improvements in achievable spectral purity, one of the basic features characterizing the …

Temporal dissipative solitons in a continuous-wave laser-driven nonlinear optical
microresonator were observed. The solitons were generated spontaneously when the laser …

Continuous-wave laser-driven, high-Q Kerr–nonlinear optical microresonators have enabled
the generation of optical frequency combs, ultralow-noise microwaves and ultrashort optical …

Optical frequency combs serve as the clockwork of optical clocks, which are now the best
time-kee** systems in existence. The use of precise optical time and frequency …

High-and ultrahigh-Q whispering-gallery mode resonators have the capability to trap
photons by total internal reflection for a duration ranging from nanoseconds to milliseconds …

Low-phase-noise microwave oscillators are important to a wide range of subjects, including
communications, radar and metrology. Photonic-based microwave-wave sources now …

Precise measurements of the frequencies of light waves have become common with mode-
locked laser frequency combs. Despite their huge success, optical frequency combs …