Application of Nonlinear Optics to Free Electron Laser Systems.
Abstract
Novel free electron laser (FEL) resonator concepts employing nonlinear optics techniques were developed in support of advanced FEL technologies. Among these concepts, three major schemes were studied for details as to their potential applications to the ground-based FEL systems: phase conjugate cavity and phase conjugate outcoupling for RF linac FEL resonators, and phase conjugate beam conversion for induction linac FEL devices. These schemes involve the utilization of some novel nonlinear optics techniques that have received very little attention before: multiple pulse stimulated Brillouin scattering, short-pulse four wave mixing, and four wave stimulated Brillouin scattering. Theoretical studies, modeling and proof of principle experiments have been performed to explore these phenomena. The analytical theory and numerical simulation showed the feasibility of these techniques to meet the system requirements and also determined parametrically the operational conditions. The experiments for short-pulse four wave mixing and four wave stimulated Brillouin scattering were conducted in carbon disulfide and acetone media, respectively. The results verified the scaling relations and demonstrated high conjugate reflectivities (about 1000) for a weak signal. Keywords: Free electron laser; Optical resonator; Nonlinear optics; Brillouin scattering; Four wave mixing; Phase conjugation.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 06, 1986
- Accession Number
- ADA168950
Entities
People
- Chung-You Shih
- G. Neil
- J. Menders
- Tsung-Han Yang