Angularly-dispersed optical parametric amplification of optical pulses with one-octave bandwidth toward monocycle regime

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We demonstrated experimentally the generation of 65-μJ, 5.8-fs optical pulses with an ultrabroad bandwidth (540-1000 nm) by the use of a double-pass angularly-dispersed non-collinear optical parametric amplifier. We also confirmed up to the 95-μJ output from the amplifier when seed pulses were not pre-compensated for. Furthermore, we confirmed that the broadband pump pulses brought in the broader gain bandwidth (from 520 to 1080 nm) than numerical estimation based on CW-pump approximation. To the best of our knowledge, this is the system with the broadest gain bandwidth.
2008-10-27