We analyse the behaviour of a master oscillator power amplifier FEL, where the amplifier operates on a harmonic of the oscillator. The premature saturation of the amplifier output power, due to the induced energy spread of the oscillator, is studied. The effects of saturation in the oscillator can be eliminated when the modulating section is provided with an optical-klystron configuration. We show that this configuration ensures a stable output power after the amplifier section. © 2003 Elsevier Science B.V. All rights reserved.
|Pages (from-to)||26 - 30|
|Number of pages||5|
|Journal||Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment|
|Publication status||Published - 11 Jul 2003|
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
Dattoli, G., Giannessi, L., & Ottaviani, P. L. (2003). MOPA optical klystron FELs and coherent harmonic generation. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 507(1-2), 26 - 30. https://doi.org/10.1016/S0168-9002(03)00828-3