Linear dependence of the time shift of an amplified pulseon the energy extraction from a laser amplifier
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It is shown that the time shifts of the intensity maximum and B-integral for an amplified laser pulse are proportional to the energy extraction from the amplifier normalised to the saturation energy, the proportionality coefficient being equal approximately to 1/7 and 1/14 of the pulse duration, respectively. Simple analytic expressions are obtained for the maximum values of the output intensity and B-integral. The results are experimentally confirmed by amplification observed in a Nd:YLF crystal.
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