We have generated pulses with a spectral bandwidth corresponding to a Fourier-limit of 8.7 fs. The power amplifier stage, which is presently under construction, has been designed to further amplify the pulses to /spl sim/20mJ/pulse. This should lead to >10 mJ, sub-10 fs pulses after compression, corresponding to a peak power exceeding one terawatt, while maintaining carrier-envelope phase control. An upgrade of our NOPCPA system is in progress, with the aim to generate sub-10 pulses with a terawatt peak power and a fully controlled electromagnetic field evolution. The seed pulses for the NOPCPA are provided by a 11 fs mode-locked Ti:Sapphire oscillator laser with a tightly controlled 75 MHz repetition frequency and /spl phi//sub CE/. Before amplification the pulses are sent through a combined grating stretcher/LCDshaper setup to stretch the pulses and control the spectral phase.


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    Title :

    Towards terawatt-power optical parametric chirped pulse amplification of phase-controlled sub-10 fs laser pulses


    Contributors:


    Publication date :

    2005-01-01


    Size :

    825634 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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