Tunable DC-40 GHz RF generation with high side-mode suppression utilizing a dual loop Brillouin optoelectronic oscillator

An agilely tunable DC to 40 GHz RF generation using a dual-loop optoelectronic oscillator based on Stimulated Brillouin Scattering is experimentally demonstrated. The side-mode suppression ratio is measured to be 43.1 dB at 20 GHz.