NDLI: Generators of High-Power Ultrashort Microwave Pulses with a Saturable Absorber in a Feedback Circuit

Content Provider	Springer Nature Link
Author	Ginzburg, N. S. Denisov, G. G. Abubakirov, E. B. Vilkov, M. N. Zotova, I. V. Sergeev, A. S.
Copyright Year	2017
Abstract	We study theoretically the mechanism of the formation of high-power ultrashort microwave pulses, which is based on the effect of passive mode locking in electron generators, whose feedback circuit includes a nonlinear saturable absorber (amplitude filter). The mechanism under consideration is an analog of the well-known method of generation of ultrashort pulses, which is used widely in laser physics. Nevertheless, realization of this method in electron generators has certain specific features connected with the motion of the active medium (electron flow). It is shown that being applied to vacuum electronics, this method is sufficiently universal, and various types of both relativistic and subrelativistic amplifiers operated in wavelength ranges from the centimeter to submillimeter ones can be used for actualization of ultrashort pulse generators as active elements. In the additional section, which acts as a saturable absorber, one can use either the Kompfner absorption effect, or the effect of cyclotron resonance absorption of radiation by a rectilinear electron beam. It is demonstrated on the basis of numerical simulation that the peak power of ultrashort pulses in electron generators with passive mode locking can exceed the power achieved in the stationary generation regimes significantly and, in some cases, the power of the electron flow.
Starting Page	613
Ending Page	628
Page Count	16
File Format	PDF
ISSN	00338443
Journal	Radiophysics and Quantum Electronics
Volume Number	59
Issue Number	8-9
e-ISSN	15739120
Language	English
Publisher	Springer US
Publisher Date	2017-03-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Astronomy, Observations and Techniques Quantum Optics Theoretical, Mathematical and Computational Physics Astrophysics and Astroparticles Nuclear Physics, Heavy Ions, Hadrons Optics, Lasers, Photonics, Optical Devices
Content Type	Text
Resource Type	Article
Subject	Statistical and Nonlinear Physics Nuclear and High Energy Physics Electronic, Optical and Magnetic Materials Astronomy and Astrophysics Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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