Investigation and applications of all-fiber brillouin ring resonator lasers

We examine the theoretical and experimental behavior of Brillouin ring resonator lasers (BRRL) highlighting differences between Brillouin scattering in ring resonators and long fiber lengths. The theory, which assumes that the nonlinear interaction is well-described by two coupled equations far the optical waves agrees well with measured data. We examine the single and multimode behavior of BRRL and show how this may be usefully implemented in microwave signal generation, in Stimulated Brillouin Scattering gain studies, and to realize a new form of all-fiber frequency shifter.