Brillouin scattering—theory and experiment: tutorial

Brillouin scattering is an important and interesting nonlinear effect involving the interaction between optical acoustic fields in waveguides. It increasingly useful field of photonics, where it supplies a tunable ultra-narrow linewidth response that can be used for applications including sensing, filtering, lasing, as well storage pulses. This tutorial gives overview fundamentals aimed at newcomers to field, covers physics underlying interaction, mathematical theory, setup details foundational experiments.