Title :
Results of the Los Alamos free-electron laser experiment
Author :
Warren, Roger W. ; Newnam, Brian E. ; Winston, John G. ; Stein, William E. ; Young, Lloyd M. ; Brau, Charles A.
Author_Institution :
Los Alamos National Laboratory, Los Alamos, NM, USA
fDate :
3/1/1983 12:00:00 AM
Abstract :
A free-electron laser (FEL) amplifier experiment to test the performance of a tapered wiggler at high optical power has been successfully completed. A well-separated two-component electron energy distribution has been obtained that is characteristic of a tapered wiggler. Energy distribution spectra and extraction efficiencies have been measured as a function of initial electron energy, energy spread, emittance, optical power, and spatial and temporal misalignments of the laser and electron beams. A maximum efficiency of ∼ 4 percent was measured, and good agreement of efficiency with a one-dimensional theory was obtained.
Keywords :
Free electron lasers; Laser amplifiers; Permanent magnets; Relativistic effects; Electron beams; Electron optics; Free electron lasers; High power amplifiers; Optical amplifiers; Power lasers; Semiconductor optical amplifiers; Stimulated emission; Testing; Undulators;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.1983.1071854
