Abstract

We report a terawatt-Ti:sapphire-laser-pumped high-energy femtosecond optical parametric amplifier (OPA) with supercontinuum white-light injection. Signal pulses with a duration less than 100fs and energy up to 4mJ are obtained with large-aperture LiNbO3 crystals. This megajoule-class femtosecond OPA at 1053nm presents a feasible alternative to optical parametric chirped-pulse amplification and is ready to be applied to petawatt lasers.

© 2006 Optical Society of America

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