Cavity length adjustment and output FEL intensity optimization

Author

Dattoli, G. ; Giannessi, L. ; Loreto, V. ; Mari, C.

Author_Institution

ENEA, Centro Ricerche Energia Frascati, Rome, Italy

Volume

27

Issue

11

fYear

1991

fDate

11/1/1991 12:00:00 AM

Firstpage

2370

Lastpage

2372

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 are also 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 cavity resonators; mirrors; bunched electron beam; cavity length adjustment; cavity mirrors; finite macropulse duration; free electron laser oscillator; intercavity signal; output FEL intensity optimization; Electron beams; Electron optics; Gain measurement; Mirrors; Optical pulses; Optical saturation; Power generation; Power lasers; Pulse measurements; Yttrium;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.100874

Filename

100874