Free electron laser oscillators with tapered undulators: Inclusion of harmonic generation and pulse propagation

G. Dattoli, S. Pagnutti, P.L. Ottaviani, V. Asgekar

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6 Citations (Scopus)


We review the theory of free-electron laser (FEL) oscillators operating with tapered undulators. We have considered the case of a uniform tapering and introduced a parameter which characterizes the effect of the tapering on the gain and the saturation intensity. We have analyzed the effect of the tapering on the FEL dynamics by including the pulse propagation effects. We further analyze the importance of tapering as a tool to model the optical pulse shapes and to control the higher harmonic intensities. © 2012 American Physical Society.
Original languageEnglish
Article number030708
Pages (from-to)-
JournalPhysical Review Special Topics - Accelerators and Beams
Issue number3
Publication statusPublished - 22 Mar 2012
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)
  • Surfaces and Interfaces

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