Linear and Time-Dependent Behavior of the Gyrotron Backward-Wave Oscillator

S. H. Chen, T. H. Chang, K. F. Pao, C. T. Fan, K. R. Chu

Research output: Contribution to journalArticlepeer-review

38 Scopus citations


Formation of axial modes in the gyrotron backward-wave oscillator is examined in the perspective of optimum conditions for beam-wave interactions. Distinctive linear properties are revealed and interpreted physically. Nonlinear implications of these properties (specifically, the role of high-order axial modes) are investigated with time-dependent simulations. Nonstationary oscillations exhibit self-modulation behavior while displaying no evidence of axial mode competition. Reasons for the erratic frequency tuning are investigated and stable tuning regimes are identified as a remedy.

Original languageEnglish
JournalPhysical Review Letters
Issue number26
StatePublished - 2002


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