Multimillijoule chirped parametric amplification of few-cycle pulses.
The concept of optical parametric chirped-pulse amplification is applied to attain pulses with energies up to 8 mJ and a bandwidth of more than 100 THz. Stretched broadband seed pulses from a Ti:sapphire oscillator are amplified in a multistage noncollinear type I phase-matched beta-barium borate parametric amplifier by use of an independent picosecond laser with lock-to-clock repetition rate synchronization. Partial compression of amplified pulses is demonstrated down to a 10-fs duration with a down-chirped pulse stretcher and a nearly lossless compressor comprising bulk material and positive-dispersion chirped mirrors.
Ishii
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N
Institut für Photonik, Technische Universität Wien, Gusshausstrasse 27/387, A-1040 Vienna, Austria. nobuhisa.ishii@mpq.mpg.de
Turi
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Yakovlev
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Fuji
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T
Krausz
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Baltuska
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Butkus
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Veitas
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Smilgevicius
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Danielius
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Piskarskas
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