A wide bandwidth free-electron laser with mode locking using current modulation.

Technical Report · Thu Jan 20 00:00:00 EST 2011

DOI:https://doi.org/10.2172/1015951· OSTI ID:1015951

Kur, E; Dunning, D J; McNeil, B W. J.; Wurtele, J; Zholents, A A ^[1]

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1. Accelerator Systems Division (APS)

A new scheme for mode locking a free-electron laser amplifier is proposed based on electron beam current modulation. It is found that certain properties of the original concept, based on the energy modulation of electrons, are improved including the spectral brightness of the source and the purity of the series of short pulses. Numerical comparisons are made between the new and old schemes and between a mode-locked free-electron laser and self-amplified spontaneous emission free-electron laser. Illustrative examples using a hypothetical mode-locked free-electron laser amplifier are provided. The ability to generate intense coherent radiation with a large bandwidth is demonstrated.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC02-06CH11357
• OSTI ID: 1015951
• Report Number(s): ANL/APS/LS-323; TRN: US201113%%177
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AMPLIFIERS
BRIGHTNESS
COHERENT RADIATION
ELECTRON BEAMS
ELECTRONS
FREE ELECTRON LASERS
MODE LOCKING
MODULATION