Zhurnal Radioelektroniki - Journal of Radio Electronics. eISSN 1684-1719. 2020. No. 12
ContentsFull text in English (pdf)
DOI https://doi.org/10.30898/1684-1719.2020.12.21
UDC 537.86+621.385.6
Generation of ultra-powerful microwave pulses in stretcher-amplifier-compressor systems
L. А. Yurovskiy, I. V. Zotova, E. B. Abubakirov, R. M. Rozental, A. S. Sergeev, N. S. Ginzburg
Institute of Applied Physics of the Russian Academy of Sciences, Ul’yanov str., 46, Nizhny Novgorod, 603950 Russia
The paper was received on December 24, 2020
Abstract. We theoretically investigate the possibility of generating ultra-high-power ultrashort microwave pulses based on the Chirped-Pulse Amplification (CPA) method, which is widely used in laser physics. This method includes preliminary elongation of the initial pulse in a stretcher, sequential amplification of spectral components in a broadband amplifier, and compression in a line with negative dispersion (compressor). We consider the scheme in which waveguides with multi-fold helical corrugation are used as dispersing elements (stretcher and compressor), and a relativistic Cherenkov TWT or helical gyro-TWT is used as an amplifier. For the parameters of experimentally realized amplifiers in the 30 GHz range, we show that the peak pulse power in the stretcher-amplifier-compressor system significantly exceeds not only the saturation level of the amplifier, but also more than 4 times higher than the power of the used electron beam.
Key words: ultrashort microwave pulses, compression of amplified chirped pulses, helical gyro-TWT, relativistic Cherenkov amplifier.
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For citation:
Yurovskiy L.A., Zotova I.V., Abubakirov E.B., Rozental R.M., Sergeev A,S., Ginzburg N.S. Generation of ultra-powerful microwave pulses in stretcher-amplifier-compressor systems. Zhurnal Radioelektroniki - Journal of Radio Electronics. 2020. No.12. hhttps://doi.org/10.30898/1684-1719.2020.12.21