Pulse Shepherding in Nonlinear Fiber Optics

Pulse shepherding is a nonlinear signal-propagation phenomenon that can occur when several pulses of light at different wavelengths are launched simultaneously or nearly simultaneously along the same single-mode optical fiber under suitable conditions. As its name suggests, pulse shepherding involves the use of one pulse (denoted the shepherd pulse) to "herd" together a number of other pulses that propagate along with it.