Nonlinear analyses for optimized short-period-wiggler free-electron laser oscillators
- 15 February 1989
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 65 (4) , 1453-1459
- https://doi.org/10.1063/1.342958
Abstract
Procedures to determine the parameters of optimized (for maximum efficiency) experimental short-period-wiggler free-electron laser (FEL) oscillators are presented. The calculations are based on a normalized set of nonlinear equations which describe a one-dimensional FEL oscillator. Scaling formulas relating the normalized theoretical parameters to dimensional experimental quantities are obtained. The physics of such realistic effects as waveguide dispersion, wiggler field dependence on magnet gap, beam energy spread, and the frequency tunability of tapered wigglers are considered. Finally, specific examples for both tapered and untapered 300-GHz, 1.0-MW FEL oscillators are calculated and discussed.This publication has 4 references indexed in Scilit:
- Near-millimeter free electron lasers with small period wigglers and sheet electron beamsNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1988
- Near-millimeter free electron laser designs based on measured characteristics of small-period electromagnet wigglersJournal of Applied Physics, 1986
- Small-period electromagnet wigglers for free-electron lasersApplied Physics Letters, 1985
- Nonstationary generation in free electron lasersOptics Communications, 1981