Title :
Saturation dynamics in FEL and optical-klystron FEL devices
Author :
Dattoli, G. ; Galli, M. ; Giannessi, L. ; Ottaviani, P.L. ; Torre, A.
Author_Institution :
Centro Ricerche Energia Frascati, ENEA, Rome, Italy
fDate :
5/1/1994 12:00:00 AM
Abstract :
In this note we present an analysis of FEL saturation mechanisms, with particular attention to the case of optical-klystron (O.K.) devices operating with low energy e-beam in the single-passage configuration. We discuss the range of validity of already introduced FEL gain versus intensity saturation formulae and show that O.K. FEL saturation occurs in two distinct steps. In the first, the dispersive section is “turned-off,” in the second, saturation in the conventional sense is reached
Keywords :
free electron lasers; klystrons; laser theory; optical saturation; wigglers; FEL; FEL gain; FEL saturation mechanisms; dispersive section; intensity saturation; low energy e-beam; optical-klystron FEL devices; saturation dynamics; single-passage configuration; turned-off; Dispersion; Electron beams; Electron optics; Klystrons; Optical devices; Optical modulation; Optical saturation; Optical sensors; Tellurium; Undulators;
Journal_Title :
Quantum Electronics, IEEE Journal of
