Numerical studies of the multi-cavity free-electron laser

Consideration is made of a free-electron laser with many optical cavities where the cavities communicate with each other, not optically, but through the electron beam. Numerical simulation results in the one-dimensional approximation, but including nonlinearities, are presented. The multi-cavity free-electron laser (MC/FEL) can be employed to avoid the slippage phenomena, and thus to make pico-second pulses of infrared radiation. Three examples of this application are presented