Design of 10-to-40 GHz and higher pulse-rate multiplication by means of coupled Fabry-Perot resonators

Limitations of a general autoregressive multistage-coupled filter for repetition rate multiplication are addressed. With only two or three stages, the useable filter passband is broadened by more than two orders of magnitude compared to single-stage (e.g. Fabry-Perot) filters thereby improving the robustness of the device to frequency detuning. Multi-stage filters also show improved performance in the pulse-to-pulse power uniformity.