New sources of coherent submillimeter-wave radiation

Large orbit gyrotron (LOG) provides output power of 40 kW at the frequency of 240 GHz. Orotrons radiate at frequencies of 100-380 GHz with power of 50-200 mW and high frequency stability. In a LOG, electron-wave interaction at high cyclotron harmonics is more selective than in conventional gyrotrons that allows achieving higher frequencies. Higher output power and higher frequency stability can be obtained in orotrons in comparison with conventional BWOs due to use of open cavities.