Polarization effects on PPLN waveguide: Supercontinuum, second harmonic, and dispersive wave generations

Periodically poled thin film lithium niobate waveguide-based supercontinuum generation was measured to be sensitively dependent on input polarization orientation, which has not been much explored. Experimentally more than two octaves supercontinuum was generated, and the effects of pump power and polarization on supercontinuum generation, second harmonic generation and short-wavelength dispersive wave were mapped from 450–1,750[Formula: see text]nm. Specifically, we identify parameters for the simultaneous second-harmonic and dispersive wave generation near 780[Formula: see text]nm and 1,000[Formula: see text]nm, which allows for the [Formula: see text] detection, and shows promises for the optical atomic clock and optical frequency referencing.