@article{5589,
  author = {R. J. Bakker and D. A. Jaroszynski and A. F. G. van der Meer and D. Oepts and P. W. van Amersfoort},
  title = {Short-Pulse Effects in a Free-Electron Laser},
  abstract = {The Free-Electron Laser for Infrared eXperiments (FELIX) offers a unqiue combination of short electron bunches and long wavelengths, i.e., a slippage parameter A, ranging up to 10. As a consequence, pronounced short-pulse effects can be observed. In this paper the experimental observation of two of these effects is discussed, namely the occurrence of limit-cycle oscillations and the feasibility of tuning of the micropulse duration. The stable limit-cycle oscillation of the macropulse power is due to a modulation of the optical micropulse shape. This is a consequence of a combination of high optical power and short pulses. The former causes synchrotron oscillations of the electrons and the effect is, therefore, closely related to spiking phenomena. The short-pulse nature of FELIX ensures that the oscillations do not evolve into the chaotic behavior normally associated with spiking and the sideband instability. Experimental results are compared with numerical simulations.},
  year = {1994},
  journal = {Ieee Journal of Quantum Electronics},
  volume = {30},
  number = {7},
  pages = {1635-1644},
  month = {Jul},
  isbn = {0018-9197},
  doi = {10.1109/3.299495},
  language = {eng},
}