The absence of the single-photon nonlinearity has been a major roadblock in developing
quantum photonic circuits at optical frequencies. In this paper, we demonstrate a periodically …

Crystalline lithium niobate (LN) is an important optical material because of its broad
transmission window that spans from ultraviolet to mid-infrared and its large nonlinear and …

Quasi-phase-matched interactions in waveguides with quadratic nonlinearities enable
highly efficient nonlinear frequency conversion. In this paper, we demonstrate the first …

The recent advancement in lithium-niobite-on-insulator (LNOI) technology is opening up
new opportunities in optoelectronics, as devices with better performance, lower power …

The measurement and stabilization of the carrier–envelope offset frequency f_CEO via self-
referencing is paramount for optical frequency comb generation, which has revolutionized …

We demonstrate waveguide-integrated superconducting nanowire single-photon detectors
on thin-film lithium niobate (LiNbO 3, LN). Using a 250 μm-long NbN superconducting …

We demonstrate supercontinuum generation over an octave spaning from 1055 to 2155 nm
on the highly nonlinear aluminum gallium arsenide (AlGaAs)-on-insulator platform. This is …

Thin-film lithium-niobate-on-insulator (LNOI) has emerged as a superior integrated-
photonics platform for linear, nonlinear, and electro-optics. Here we combine quasi-phase …

We demonstrate ultrabroadband supercontinuum generation from ultraviolet to mid-infrared
wavelengths in single-crystalline aluminum nitride waveguides. Tunable dispersive waves …

Compact chip-scale comb sources are of significant interest for many practical applications.
Here, we experimentally study the generation of supercontinuum (SC) in an axially varying …