Investigation of the dynamic regime in operation of spin-wave optoelectronic oscillators

Influence of an optical fiber length on nonlinear dynamics of a spin-wave optoelectronic oscillator is investigated. An increase of the signal power level leads to transition from a stable monochromatic oscillations to a chaotic signal generation through a number of bifurcations. Generation of the rectangular pulses, periodic nonlinear pulses, chaotic pulses, and dynamic chaos are observed for the different fiber lengths. Numerical characterization demonstrates increase of the fractal dimension with increasing of the optical fiber length.