BACKGROUND Singularities are critical points for which the behavior of a mathematical
model governing a physical system is of a fundamentally different nature compared to the …

Recent developments in chip-based nonlinear photonics offer the tantalizing prospect of
realizing many applications that can use optical frequency comb devices that have form …

Developments in integrated photonics have led to stable, compact and broadband comb
generators that support a wide range of applications including communications, ranging …

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 …

The generation of Kerr frequency combs in a coherently driven nonlinear microresonator is
now extensively investigated more generally by the research community as a potentially …

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 …

Microresonator frequency combs can be an enabling technology for optical frequency
synthesis and timekeeping in low size, weight, and power architectures. Such systems …

Multi-mode waveguides are ubiquitously used in integrated photonics. Although interaction
among different spatial waveguide eigenmodes can induce novel nonlinear phenomena …

Optical whispering gallery modes (WGMs) derive their name from a famous acoustic
phenomenon of guiding a wave by a curved boundary observed nearly a century ago. This …

Linking classical microwave electrical circuits to the optical telecommunication band is at the
core of modern communication. Future quantum information networks will require coherent …