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

Quasi-phase-matching has long been a widely used approach in nonlinear photonics,
enabling efficient parametric frequency conversions such as second-harmonic generation …

The study has demonstrated a novel microcavity‐based flexible photon up‐conversion
system using second harmonic generation (SHG) from a polar nematic fluidic medium …

The coherent photogalvanic effect leads to the generation of a current under the absorption
interference of coherent beams and allows for the inscription of space‐charge gratings …

The lack of a bulk second-order nonlinearity (χ^(2)) in silicon nitride (Si_3N_4) keeps this
low-loss, CMOS-compatible platform from key active functions such as Pockels electro-optic …

We use Maxwell's equations to derive several models describing the interaction of the multi-
mode fundamental field and its second harmonic in a ring microresonator with quadratic …

Quasi-phase-matching for efficient backward second-harmonic generation requires sub-μ m
poling periods, a nontrivial fabrication feat. For the first time, we report integrated first-order …

We report on violet-light generation using the femtosecond-laser written waveguides in
periodically poled MgO: LiTaO 3 crystal under conditions of third-order quasi-phase …

Quasi-phase-matching (QPM) has become one of the most common approaches for
increasing the efficiency of nonlinear three-wave mixing processes in integrated photonic …

We report the experimental demonstration of efficient second-harmonic generation by
splicing optically poled fiber segments. A device made from five segments each 20 cm-long …