Phase locking in an infrared short-pulse free-electron laser |
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Authors: | Oepts D Colson WB |
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Institution: | FOM-Inst. voor Plasmafysica Rijnhuizen, Nieuwegin ; |
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Abstract: | The feasibility of the phase-locking procedure for the external selection of a single mode with reasonable power has been tested by simulation of the optical pulse evolution in a short-pulse free-electron laser using a model based on the self-consistent solution of the equations of motion for the electrons and the wave equation driven by single-particle currents. The simulations show that a high degree of coherence between successive pulses can be induced by a low-finesse etalon. Saturated operation in a greatly reduced number of modes, but with the same total power, is attained with a slight delay in the growth of the power as compared to the case without phase locking |
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