Abstract

We report on the generation of $1.0\mathrm{PW}$, $30\mathrm{fs}$ laser pulses at a $0.1\mathrm{Hz}$ repetition rate from a chirped-pulse amplification Ti:sapphire laser system. The energy of the laser pulses is amplified up to $47\mathrm{J}$ in a final three-pass booster amplifier having $96\mathrm{J}$ pump energy. To the best of our knowledge, this is the first petawatt Ti:sapphire laser system at a $0.1\mathrm{Hz}$ repetition rate. The shot-to-shot energy fluctuation of the laser pulses is as low as 0.53% in rms value, and the laser pulses have homogeneous flattop spatial beam profiles.

© 2010 Optical Society of America

4.2 PW, 20 fs Ti:sapphire laser at 0.1 Hz

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