skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Generation of “gigantic” ultra-short microwave pulses based on passive mode-locking effect in electron oscillators with saturable absorber in the feedback loop

Abstract

A periodic train of powerful ultrashort microwave pulses can be generated in electron oscillators with a non-linear saturable absorber installed in the feedback loop. This method of pulse formation resembles the passive mode-locking widely used in laser physics. Nevertheless, there is a specific feature in the mechanism of pulse amplification when consecutive energy extraction from different fractions of a stationary electron beam takes place due to pulse slippage over the beam caused by the difference between the wave group velocity and the electron axial velocity. As a result, the peak power of generated “gigantic” pulses can exceed not only the level of steady-state generation but also, in the optimal case, the power of the driving electron beam.

Authors:
; ; ; ;  [1]
  1. Institute of Applied Physics of the Russian Academy of Sciences, 46 Ul'yanov Str., 603950 Nizhny Novgorod (Russian Federation)
Publication Date:
OSTI Identifier:
22600075
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 23; Journal Issue: 5; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; AMPLIFICATION; ELECTRON BEAMS; ELECTRONS; LASERS; MICROWAVE RADIATION; MODE LOCKING; NONLINEAR PROBLEMS; OSCILLATORS; PEAK LOAD; PULSES; STEADY-STATE CONDITIONS; VELOCITY

Citation Formats

Ginzburg, N. S., E-mail: ginzburg@appl.sci-nnov.ru, Denisov, G. G., Vilkov, M. N., Zotova, I. V., and Sergeev, A. S. Generation of “gigantic” ultra-short microwave pulses based on passive mode-locking effect in electron oscillators with saturable absorber in the feedback loop. United States: N. p., 2016. Web. doi:10.1063/1.4948553.
Ginzburg, N. S., E-mail: ginzburg@appl.sci-nnov.ru, Denisov, G. G., Vilkov, M. N., Zotova, I. V., & Sergeev, A. S. Generation of “gigantic” ultra-short microwave pulses based on passive mode-locking effect in electron oscillators with saturable absorber in the feedback loop. United States. doi:10.1063/1.4948553.
Ginzburg, N. S., E-mail: ginzburg@appl.sci-nnov.ru, Denisov, G. G., Vilkov, M. N., Zotova, I. V., and Sergeev, A. S. Sun . "Generation of “gigantic” ultra-short microwave pulses based on passive mode-locking effect in electron oscillators with saturable absorber in the feedback loop". United States. doi:10.1063/1.4948553.
@article{osti_22600075,
title = {Generation of “gigantic” ultra-short microwave pulses based on passive mode-locking effect in electron oscillators with saturable absorber in the feedback loop},
author = {Ginzburg, N. S., E-mail: ginzburg@appl.sci-nnov.ru and Denisov, G. G. and Vilkov, M. N. and Zotova, I. V. and Sergeev, A. S.},
abstractNote = {A periodic train of powerful ultrashort microwave pulses can be generated in electron oscillators with a non-linear saturable absorber installed in the feedback loop. This method of pulse formation resembles the passive mode-locking widely used in laser physics. Nevertheless, there is a specific feature in the mechanism of pulse amplification when consecutive energy extraction from different fractions of a stationary electron beam takes place due to pulse slippage over the beam caused by the difference between the wave group velocity and the electron axial velocity. As a result, the peak power of generated “gigantic” pulses can exceed not only the level of steady-state generation but also, in the optimal case, the power of the driving electron beam.},
doi = {10.1063/1.4948553},
journal = {Physics of Plasmas},
number = 5,
volume = 23,
place = {United States},
year = {Sun May 15 00:00:00 EDT 2016},
month = {Sun May 15 00:00:00 EDT 2016}
}