The authors reconsider in more quantitative detail the possibility of enhancing the output intensity of a free electron laser (FEL) oscillator operating with bunched electron beam and finite macropulse duration, adjusting the cavity length while the signal grows. In a forthcoming publication G. Dattoli et al. point out that the output power can be enhanced by moving the cavity mirrors while the intercavity signal grows in such a way that the system is operating at the value of the cavity length providing the maximum gain. Practical solutions to realize the mirror movements will also be discussed. The authors complete the analysis to be published by presenting simple formulas which allow a straightforward evaluation of the power enhancement. Keywords: FREE ELECTRON LASERS, LASER CAVITIES, LASER OUTPUTS, ELECTRON BEAMS, MIRR
Cavity lenght adjustment and output FEL intensity optimization / G., Dattoli; L., Giannessi; Loreto, Vittorio; C., Mari. - In: IEEE JOURNAL OF QUANTUM ELECTRONICS. - ISSN 0018-9197. - STAMPA. - 27:11(1991), pp. 2370-2372. [10.1109/3.100874]
Cavity lenght adjustment and output FEL intensity optimization
LORETO, Vittorio;
1991
Abstract
The authors reconsider in more quantitative detail the possibility of enhancing the output intensity of a free electron laser (FEL) oscillator operating with bunched electron beam and finite macropulse duration, adjusting the cavity length while the signal grows. In a forthcoming publication G. Dattoli et al. point out that the output power can be enhanced by moving the cavity mirrors while the intercavity signal grows in such a way that the system is operating at the value of the cavity length providing the maximum gain. Practical solutions to realize the mirror movements will also be discussed. The authors complete the analysis to be published by presenting simple formulas which allow a straightforward evaluation of the power enhancement. Keywords: FREE ELECTRON LASERS, LASER CAVITIES, LASER OUTPUTS, ELECTRON BEAMS, MIRRI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
