Start-to-end modelling of a mode-locked optical klystron free electron laser amplifier
نویسندگان
چکیده
منابع مشابه
The Free Electron Laser Klystron Amplifier Concept
The simplest high gain free electron laser (FEL) amplifier concept is proposed. A klystron amplifier has the useful property that the various electronic processes take place in separate portions of the amplifier, rather than overlapping as in FEL amplifier with an uniform undulator. The klystron consists of two fundamental parts: succession of 2-3 cascades (modulator), and an output undulator (...
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The particle optics code GPT [1] has been applied to study the single pass electron beam interaction with an external laser field in the undulator system of a free electron laser. In particular, this code has been used to simulate the laser electron beam interaction in an optical klystron. Micro-bunching as a result of the interaction of the electron bunch with an electromagnetic pulse is prese...
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A technique is proposed to generate attosecond pulse trains of radiation from a free-electron laser amplifier. The optics-free technique synthesizes a comb of longitudinal modes by applying a series of spatiotemporal shifts between the copropagating radiation and electron bunch in the free-electron laser. The modes may be phase locked by modulating the electron beam energy at the mode spacing f...
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Evolution of the time domain fields and the spectral power of super-radiant radiation in a free-electron laser oscillator (e-beam pulses shorter than a wavelength) are investigated. We consider a finite train of N short bunches of electrons propagating through the undulator. The coherence of the synchrotron radiation emitted from the bunched beam grows with the number N of the e-beam pulses ent...
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Recently, in our group 800 fs optical pulses were generated in a mode-locked ring laser operated by polarization saturation in a semiconductor optical amplifier (SOA). We investigate numerically the generation of sub-picosecond optical pulses in such a configuration, consisting of a SOA and a linear polarizer placed in a ring. Polarization saturation in the SOA takes the role of a saturable abs...
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ژورنال
عنوان ژورنال: Physics of Plasmas
سال: 2011
ISSN: 1070-664X,1089-7674
DOI: 10.1063/1.3605027