Transmission Bragg-grating grisms for pulse compression

We design a grism compressor based on transmission gratings and high refractive index prisms to compensate for both the second- and third-order dispersions of SF57 glass at 800?nm. The use of transmission gratings eases the geometrical constraints, allows a final recombination of the spectral components out of the bulk of the prisms and suggests a potential application of these grims to high-energy pulse compression. The dispersion law of this grism compressor is measured in double-pass configuration and negative third-order dispersion is achieved. We demonstrate efficient operation with an overall throughput >60% over a 100?nm bandwidth.