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Opt Express. 2010 Dec 20;18(26):27900-9. doi: 10.1364/OE.18.027900.

Dispersion control with reflection grisms of an ultra-broadband spectrum approaching a full octave.

Author information

  • 1Max-Planck-Institut für Quantenoptik, Garching, Germany.

Erratum in

  • Opt Express. 2011 Jun 20;19(13):12634.


We report the design, implementation, and characterization of a grism-pair stretcher in a near-infrared noncollinear optical parametric chirped-pulse amplifier (OPCPA) that is capable of controlling a bandwidth of 440 nm. Our dynamic dispersion control scheme relies on the grism stretcher working in conjunction with an acousto-optic programmable dispersive filter (Dazzler) to jointly compensate large amount of material dispersion. A spectral interference technique is used to characterize the spectral phase of the grism stretcher. This ultra-broadband device opens up the way to generate sub-2-cycle laser pulses.

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