A novel small-period wiggler and simulations of its free-electron laser

Author

Feng, Bibo ; Wang, Zhijiang ; Zhijiang Wang

Author_Institution

Shanghai Inst. of Opt. & Fine Mech., Acad. Sinica, China

Volume

29

Issue

8

fYear

1993

fDate

8/1/1993 12:00:00 AM

Firstpage

2263

Lastpage

2266

Abstract

A small-period wiggler constructed of edgy-wound bifilar-helical conducting sheets with ferromagnetic cores, which is intended for free-electron lasers, is presented. The performance characteristics of the wiggler fields with a 100 mm period are measured. A field as high as 1500 G has been obtained. Free-electron lasers with this small-period wiggler have been investigated numerically with a three-dimensional nonlinear theory. Simulation results estimated that a radiation power of 20.2 MW and a frequency of 170 GHz with an efficiency of 5.1% can be obtained. It is feasible to make Raman free-electron lasers with this type of wiggler operating in the millimeter and submillimeter wavelength range with a relatively low electron energy (<500 keV) beam

Keywords

Raman lasers; free electron lasers; laser theory; masers; submillimetre wave devices; wigglers; 1500 G; 170 GHz; 20.2 MW; 3D; 5.1 percent; 500 keV; Raman free-electron lasers; bifilar-helical conducting sheets; edgy-wound; electron beam energy; ferromagnetic cores; free-electron laser; performance characteristics; radiation power; relatively low electron energy; simulations; small-period wiggler; submillimeter wavelength range; three-dimensional nonlinear theory; wiggler fields; Copper; Electromagnetic wave polarization; Electromagnets; Electron beams; Free electron lasers; Frequency estimation; Lamination; Laser theory; Undulators; Wounds;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.245554

Filename

245554