Design of mid-Infrared supercontinuum generation in lithium niobate on sapphire waveguide through lateral leakage engineering

We study the lateral leakage of a silicon nitride loaded lithium niobate on sapphire waveguide in the mid-infrared regime. We then combine lateral leakage and dispersion engineering to numerically demonstrate mid-infrared supercontinuum generation extending from 2400nm to 5000nm