Nonlinear Frequency Conversion

The chapter describes fundamental aspects of non-linear optics and introduces the reader to a wide range of nonlinear optical phenomena. The description starts with Maxwell’s equations, nonlinear polarization and followed by nonlinear wave equation, and its application to several important high order nonlinear processes. The covered nonlinear processes are described in details at both theoretical and practical levels, including examples of demonstrated fiber lasers with nonlinear frequency conversion.