Abstract
The technique of chirped pulse amplification has sucessfully been applied to the amplification of sub-50fs pulses from Ti:sapphire oscillators and energies approaching 125 mJ have been achieved [1,2]. Although these pulses have very high peak power they are useful to solid-state target experiment only if they are free of any prepulse or wings below an intensity of 1011 W/cm2. We describe here a Ti:sapphire amplifier producing 30 TW pulses at 10 Hz which has been designed to produce pedestal free pulses. To reduce any prepulse, we designed the amplifier with broad transmission bandwidth, minimum material path length, high gain, and an aberration free system for stretching and recompressing the pulses [3].
© 1997 Optical Society of America
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