We numerically and experimentally investigate the complete dynamics of the amplification process occurring in fiber optical parametric chirped pulse amplifiers. We show that, in the linear amplification regime, more than 30% of the pump can be converted into the signal with a very good temporal contrast higher than 65 dB. Under strong saturation, this efficiency is kept constant but the temporal contrast of the signal significantly degrades.
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Bigourd et al. (2011) studied this question.
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