Open AccessGeneration of ultra-powerful microwave pulses in stretcher-amplifier-compressor systems.
Author(s) -
Lev A. Yurovskiy,
I. V. Zotova,
É. B. Abubakirov,
R. M. Rozental,
A. S. Sergeev,
N. S. Ginzburg
Publication year - 2020
Publication title -
journal of radio electronics
Language(s) - English
Resource type - Journals
ISSN - 1684-1719
DOI - 10.30898/1684-1719.2020.12.21
Subject(s) - amplifier , optics , gas compressor , microwave , chirped pulse amplification , physics , prism compressor , broadband , materials science , laser , pulse (music) , pulse compression , cherenkov radiation , ultrashort pulse , optoelectronics , bandwidth limited pulse , engineering , telecommunications , radar , cmos , quantum mechanics , detector , thermodynamics
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.