Nonlinear Optical Processes

This lecture covers the fundamentals of nonlinear optical processes, including second-order parametric processes and phase matching. It discusses the operation of single-mode lasers, the use of intracavity etalons for mode selection, and the dynamics of resonator modes. The presentation delves into the limitations of bandwidth due to factors like pump fluctuations and mechanical stability. It also explores examples of nonlinear effects, such as harmonic distortion and anharmonicity in nuclear vibrations. The lecture concludes with a detailed explanation of parametric processes, level diagrams, and the classification of x(2) effects.