A simple model of gain saturation in high gain single pass free electron lasers

G. Dattoli, L. Giannessi, P.L. Ottaviani, M. Carpanese

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Abstract

The saturation dynamics of a high gain single passage FEL is reproduced by means of an analytical model based on Bloch-type equations, similar to those governing the physics of conventional lasers. The main results of the paper is the proof that the evolution from small to strong signal regime can be described in terms of the logistic function, whose validity is extended to the oscillator regime.
Original languageEnglish
Pages (from-to)133 - 136
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume393
Issue number1-3
DOIs
Publication statusPublished - 1 Jul 1997
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation

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