The response of the short pulse free-electron laser oscillator to periodic perturbation of the cavity synchronism

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Jaroszynski, D.A. and Oepts, D. and Van der Meer, A.F.G. and Chaix, P. (1998) The response of the short pulse free-electron laser oscillator to periodic perturbation of the cavity synchronism. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 407 (1). pp. 407-412. ISSN 0168-9002 (http://dx.doi.org/10.1016/S0168-9002(98)00059-X)

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Abstract

The detailed optical pulse structure of the short pulse free-electron laser depends on the synchronism between optical and electron pulses in the cavity. For certain cavity detuning a regular train of optical pulses are produced and the macroscopic energy of the optical pulses exhibits a limit cycle. We show that the instabilities associated with the limit cycle and chaotic behaviour can be examined by periodically adjusting the cavity desynchronism. Resonances have been observed at the limit cycle, the period doubled, etc. frequencies. Moreover, the optical power close to these resonances is enhanced and the frequency of the optical pulse microstructure in the cavity is locked to the perturbing frequency leading to possible new methods of synchronising external lasers to the free-electron laser.

ORCID iDs

Jaroszynski, D.A. ORCID logoORCID: https://orcid.org/0000-0002-3006-5492, Oepts, D., Van der Meer, A.F.G. and Chaix, P.;
  • Item type:Article
    ID code:18336
    Dates:
    Date
    Event
    21 April 1998
    Published
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Strathprints Administrator
    Date deposited:05 Apr 2010 08:13
    Last modified:11 Nov 2024 09:16
    URI:https://strathprints.strath.ac.uk/id/eprint/18336
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