Simulation of pre-bunched free electron laser oscillator in the THz regime

Bazouband, F; Mir, E

doi:10.47176/ijpr.20.2.25731

Simulation of pre-bunched free electron laser oscillator in the THz regime

Document Type : Original Article

Authors

F Bazouband ¹

E Mir ²

¹ 1. Department of Physics, Faculty of Science, Fasa University, Fasa, Iran

² 2. Department of Photonics, Faculty of Sciences and New Technologies, Graduate University of Advanced Technology, Kerman, Iran

https://doi.org/10.47176/ijpr.20.2.25731

Abstract

One of the long-term objectives in the development of high gain free electron lasers (FEL) is to reduce the necessary electron beam voltage for a strong FEL interaction at a given frequency. FEL oscillators (FELOs) play the main role to this end. In this paper, the simulation of one dimensional FELO with planar wiggler is done at the applicable Tera-hertz regime. The effect of pre-bunched electron beam on the gain improvement or on the laser length is investigated. To study the evolution of system, a set of self-consistent nonlinear differential equations are solved numerically by the Runge-Kutta method and the averaging of electron beam is done by the Simpson method.

Keywords

free electron laser oscillator

one dimensional simulation

planar wiggler

energy and pre-bunching of beam

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