1. Nonlinear study on Raman regime free electron laser with elliptical waveguide
- Author
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Xiaoguang Xiao, Zheng Liang, and Minghong Wang
- Subjects
Physics ,Optical amplifier ,Acoustics and Ultrasonics ,business.industry ,Wiggler ,Amplifier ,Free-electron laser ,Condensed Matter Physics ,Laser ,Waveguide (optics) ,Surfaces, Coatings and Films ,Electronic, Optical and Magnetic Materials ,law.invention ,symbols.namesake ,Optics ,law ,symbols ,Physics::Accelerator Physics ,business ,Raman spectroscopy ,Raman scattering - Abstract
A free electron laser (FEL) amplifier with an elliptical waveguide and a planar wiggler is proposed. A set of coupled operating equations for this FEL operating in the Raman regime is derived using three-dimensional nonlinear theory. The numerical simulation code is developed, and the characteristics of this FEL amplifier are analysed numerically. Our numerical simulations are conducted to model a 34.6 GHz amplifier with an electron beam with an energy of 3.1 MeV. The results indicate that the elliptical waveguide is more suitable for a FEL with a planar wiggler system than a rectangular waveguide.
- Published
- 2006