Optical-parametric-oscillation-based ${\chi }^{(2)}$ frequency comb in a lithium niobate microresonator

Nicolás Amiune, Danila N. Puzyrev, Vladislav V. Pankratov +3

Microresonator frequency combs based on the ${\chi }^{(3)}$ nonlinearity are nowadays well understood and making their way into different applications. Recently, microresonator frequency…