On the generation of temporally shaped laser pulses for inertial confinement |
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Authors: | W Friedman W Seka J Soures |
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Institution: | Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623, USA |
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Abstract: | Pulse shaping of some form is likely to be essential for laser fusion. The problems encountered in amplifying such pulses in present-day laser systems are studied in a computer model. Saturation effects in the amplifiers can significantly alter the input pulse shape. This pulse shape modification sets in when the output flux in the final amplifier reaches ≈ 15% of the saturation flux. Consequently, great flexibility is required for the pulse shaping mechanism if pulses of complex shapes are to be obtained at the output of a large laser amplifier systems. The problems have been simulated and analyzed for one beam line of the University of Rochester's planned 24 beam phosphate glass laser systems. |
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