All-Optical Signal Processing of Periodic Signals Using a Brillouin Gain Comb

The amplification of periodic signals using a Brillouin gain comb provides the opportunity to manipulate the amplitude and phase of a signal's individual spectral harmonics and, therefore, its temporal characteristics. In addition to obvious applications in pulse shaping, the approach offers new opportunities in the context of slow-light generation which include power-efficient Brillouin amplification of broadband periodic signals without delay, signal delay/advancement with relatively low gain variation, and fast-light generation accompanied by high levels of gain.