Kerr frequency comb

A Kerr frequency comb is a type of optical frequency comb that is generated through the process of the Kerr effect in nonlinear optical media. The Kerr effect refers to a phenomenon where the refractive index of a material changes in response to the intensity of light passing through it. When high-intensity light waves are introduced into such a medium, they can generate multiple new frequency components, resulting in a comb-like spectrum of optical frequencies.