Rogue waves and ultra broadband generation in gyrotrons

We demonstrate that gyrotrons operating in the regime of developed turbulence can sporadically emit “giant” spikes with intensities a factor of 100 ÷ 200 greater than the average radiation power and a factor of 4 ÷ 6 exceeding the power of a driving electron beam. Together with a long-tail pulse-height probability distribution, this allows the interpretation of generated spikes as microwave rogue waves. Generation of rogue waves in gyrotrons can be interesting as a method for production of MW level pulses at sub-millimeter waveband.