Title
Mode Competition In Long-Pulse Fels
Abbreviated Journal Title
Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip.
Keywords
Instruments & Instrumentation; Nuclear Science & Technology; Physics ; Particles & Fields; Spectroscopy
Abstract
The nonlinear mode interaction in FELs is studied in an analytic perturbative framework both for low as well as high gain regimes. The mode coupling depends on the saturation terms which mainly arise from third order perturbation. Both self- and crossed saturation are obtained and the ratio crossed/self characterizes the strength of the mode coupling. The mode competition is analyzed by studying the two mode problem. Mathematically, this entails a stability analysis of a system of two coupled integro-differential equations. In FELs the crossed saturation is twice as strong as the self-saturation. As a consequence of the strong crossed saturation, a dominant mode is able to suppress other competing modes and the result is single mode operation.
Journal Title
Nuclear Instruments & Methods in Physics Research Section a-Accelerators Spectrometers Detectors and Associated Equipment
Volume
285
Issue/Number
1-2
Publication Date
1-1-1989
Document Type
Article; Proceedings Paper
Language
English
First Page
132
Last Page
135
WOS Identifier
ISSN
0168-9002
Recommended Citation
Kimel, Isidoro and Elias, Luis R., "Mode Competition In Long-Pulse Fels" (1989). Faculty Bibliography 1980s. 787.
https://stars.library.ucf.edu/facultybib1980/787
Comments
Authors: contact us about adding a copy of your work at STARS@ucf.edu