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New Type of Pulsed High-Power sub-THz Source Based on Helical-Type Gyro-TWTs

Marek, Alexander ORCID iD icon 1; Feuerstein, Lukas ORCID iD icon 1; Illy, Stefan 1; Thumm, Manfred 1,2; Wu, Chuanren ORCID iD icon 1; Jelonnek, John 1,2
1 Institut für Hochleistungsimpuls- und Mikrowellentechnik (IHM), Karlsruher Institut für Technologie (KIT)
2 Institut für Hochfrequenztechnik und Elektronik (IHE), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

A new type of microwave source for the generation of high-power ultra-short coherent pulses at 263 GHz is presented. The source is based on the idea of passive mode-locking of two microwave tubes as it was first proposed in [1]. While passive mode-locking is well-established in laser physics, this idea is new for microwave electron tubes and was first experimentally demonstrated in [2]. As electron tubes, two helical gyro-TWTs are used that are coupled by a quasi-optical feedback system. The configuration proposed in this publication extends the original setup to enable the operation of the passive mode-locked oscillator in the hard excitation regime and to allow in addition the operation of the coupled helical gyro-TWTs as two-stage amplifier and as frequency-tunable, phase-locked backward wave oscillators. The performed simulation show an expected output power above 500 W and pulse widths below 0.1 ns for an operation as passive mode-locked oscillator.


Postprint §
DOI: 10.5445/IR/1000151716
Veröffentlicht am 01.12.2022
Originalveröffentlichung
DOI: 10.1109/IRMMW-THz50927.2022.9895769
Scopus
Zitationen: 1
Dimensions
Zitationen: 1
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Hochfrequenztechnik und Elektronik (IHE)
Institut für Hochleistungsimpuls- und Mikrowellentechnik (IHM)
Publikationstyp Proceedingsbeitrag
Publikationsdatum 26.09.2022
Sprache Englisch
Identifikator ISBN: 978-1-72819-427-1
KITopen-ID: 1000151716
HGF-Programm 31.13.02 (POF IV, LK 01) Plasma Heating & Current Drive Systems
Erschienen in 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), Delft, 28th August - 2nd September 2022
Veranstaltung 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz 2022), Delft, Niederlande, 28.08.2022 – 02.09.2022
Verlag Institute of Electrical and Electronics Engineers (IEEE)
Seiten 1–4
Nachgewiesen in Dimensions
Scopus
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