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Opt Lett. 2005 Nov 1;30(21):2921-3.

Pump-noise transfer in optical parametric chirped-pulse amplification.

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  • 1Centre National de la Recherche Scientifique, Commissariat a l'Energie Atomique, Ecole Polytechnique, Université Pierre et Marie Curie, Ecole Polytechnique, 91128 Palaiseau, France.


We report on direct observation of temporal contrast degradation of short pulses amplified by optical parametric chirped-pulse amplification. We show that, despite injection seeding, quantum-noise-induced fast modulations (< 50 ps) of the temporal profile of the pump pulse are imprinted on the spectrum of the amplified chirped pulse and give rise to a large picosecond pedestal in the time domain.

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