Concepts and present status for multi-mode quasi-optical converters in gyrotrons

Concepts and present status for multi-mode quasi-optical converters in gyrotrons

It is a demand and a challenge for high-power microwave electronics to develop a megawatt power level gyrotron capable to operate at several modes and correspondingly at several frequencies. The main approaches for designing effective converters of a set of operating modes into a paraxial wave beam...

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Bibliographische Detailangaben
Hauptverfasser: Denisov, G.G., Bogdashov, A.A., Chirkov, A.V., Pavel'ev, A.B.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Electron tubes
Frequency
Gyrotrons
Magnetic fields
Mirrors
Optical losses
Optical pumping
Optical scattering
Optical surface waves
Optical waveguides
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Beschreibung
Zusammenfassung:It is a demand and a challenge for high-power microwave electronics to develop a megawatt power level gyrotron capable to operate at several modes and correspondingly at several frequencies. The main approaches for designing effective converters of a set of operating modes into a paraxial wave beam are discussed. Two main principles: "pre-shaping" of the wave beam before its launching from the waveguide end and near-confocal mirror optics are considered and their limitations studied.
DOI:10.1109/ICIMW.2004.1422174