Start-to-end modelling of a mode-locked optical klystron free electron laser amplifier

Journal Article · Fri Jul 15 00:00:00 EDT 2011 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3605027· OSTI ID:22046897

Dunning, D J; Thompson, N R ^[1]; Williams, P H ^[2]

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1. University of Strathclyde (SUPA), Glasgow G4 0NG (United Kingdom)
2. ASTeC, Daresbury Laboratory, Warrington WA4 4AD (United Kingdom)

A free electron laser (FEL) in a mode-locked optical klystron (MLOK) configuration is modelled using start-to-end simulations that simulate realistic electron beam acceleration and transport before input into a full three-dimensional FEL simulation code. These simulations demonstrate that the MLOK scheme is compatible with the present generation of radiofrequency accelerator designs. A train of few-optical cycle pulses is predicted with peak powers similar to those of the equivalent conventional FEL amplifier. The role of electron beam energy modulation in these results is explained and the limitations of some simulation codes discussed. It is shown how seeding the FEL interaction using a High Harmonic seed laser can improve the coherence properties of the output.

• OSTI ID: 22046897
• Journal Information: Physics of Plasmas, Vol. 18, Issue 7; Other Information: (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ACCELERATION
AMPLIFIERS
BEAM PRODUCTION
BEAM TRANSPORT
BEAM-PLASMA SYSTEMS
COMPUTERIZED SIMULATION
DESIGN
ELECTRON BEAMS
F CODES
FREE ELECTRON LASERS
KLYSTRONS
LINEAR ACCELERATORS
MODE LOCKING
MODULATION
RADIOWAVE RADIATION
RF SYSTEMS
THREE-DIMENSIONAL CALCULATIONS