Free-electron laser saturated regime, cavity modulation, and harmonic generation

Author

Dattoli, G. ; Mezi, L. ; Renieri, A. ; Torre, A.

Author_Institution

Dipt. Innovazione, ENEA, Rome, Italy

Volume

34

Issue

9

fYear

1998

fDate

9/1/1998 12:00:00 AM

Firstpage

1782

Lastpage

1789

Abstract

We explore the analytical dependence of the free-electron laser (FEL) saturated power on the cavity detuning and discuss the dependence of the higher harmonics generated power on this quantity. We show that a suitable modulation of the cavity detuning may provide a pulsed behaviour of the laser, superimposed to the natural mode locking. The new temporal characteristics of the laser are discussed and it is shown that they can be controlled by controlling the cavity-length modulation period. We also study the effect of this modulation on the harmonic generation. The possibility of extending the same mechanism to a free electron laser operating with a storage ring is finally discussed and we show that, under certain conditions, it may modify the characteristics of the stationary configuration

Keywords

free electron lasers; laser cavity resonators; laser mode locking; laser theory; laser tuning; optical harmonic generation; optical modulation; optical saturation; FEL saturated power; analytical dependence; cavity detuning; cavity modulation; cavity-length modulation period; free-electron laser saturated regime; harmonic generation; higher harmonics generation; natural mode locking; pulsed behaviour; stationary configuration; storage ring; temporal characteristics; Free electron lasers; Harmonic analysis; Laser mode locking; Optical control; Optical harmonic generation; Power generation; Power lasers; Power system harmonics; Pulse modulation; Ring lasers;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.709597

Filename

709597