Supercontinuum (SC) has opened up possibilities for numerous applications in optical
communications, signal processing, metrology, and spectroscopy. Supercontinuum …

ScAlN is an emerging ferroelectric material that possesses large bandgap and strong
piezoelectricity and holds great promises for enhanced χ (2) nonlinearity. In this study, we …

Optical sources emitting in the ultraviolet (UV) to near-infrared wavelength range are an
enabling tools for a wide variety of applications. To achieve broadband coherent generation …

Frequency conversion in nonlinear materials is an extremely useful solution to the
generation of new optical frequencies. Often, it is the only viable solution to realize light …

Here, we report χ^(3) χ^(3)-based optical parametric oscillation (OPO) with widely separated
signal–idler frequencies from crystalline aluminum nitride microrings pumped at …

Precision calibration of astronomical spectrographs is essential to the hunt for exoplanets,
the study of cosmology and determining variation of the fundamental constants. Frequency …

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 …

Although the first lasers invented operated in the visible, the first on-chip devices were
optimized for near-infrared (IR) performance driven by demand in telecommunications …

Ultrafast nonlinear photonics enables a host of applications in advanced on-chip
spectroscopy and information processing. These rely on a strong intensity dependent …

A broadband visible (VIS) blue-to-red, 10 GHz repetition rate frequency comb is generated
by combined spectral broadening and triple-sum-frequency generation in an on-chip silicon …