The rapid development of optical frequency combs from their table-top origins towards chip-
scale platforms has opened up exciting possibilities for comb functionalities outside …

Abstract Second-order (χ (2)) optical nonlinearity is one of the most common mechanisms for
modulating and generating coherent light in photonic devices. Due to strong photon …

The recent emergence of thin-film lithium niobate (TFLN) has extended the landscape of
integrated photonics. This has been enabled by the commercialization of TFLN wafers and …

On‐chip optical microresonators are essential building blocks in integrated optics. The
ability to arbitrarily engineer their resonant frequencies is crucial for exploring novel physics …

The concept of synthetic dimensions in photonics provides a versatile platform in exploring
multi-dimensional physics. Many of these physics are characterized by band structures in …

The erbium-doped lithium niobate on insulator (Er: LNOI) has garnered significant attention
as it combines outstanding gain property with integration capabilities, making it a promising …

Integrated frequency comb generators based on Kerr parametric oscillation have led to chip-
scale, gigahertz-spaced combs with new applications spanning hyperscale …

Integrated photonics provides an important platform for simulating physical models with high-
performance chip-scale devices, where the lattice size and the time-dependence of a model …

Resonator-enhanced electro-optical (EO) combs could generate a series of comb lines with
high coherence and stability. Recently, EO comb based on thin-film lithium niobate (TFLN) …

Harnessing non-spatial properties of photons as if they represent an additional independent
coordinate underpins the emerging synthetic dimension approach. It enables probing of …