The use of a controlled, removable angular dispersion applied to the signal beam in a plane orthogonal to that containing the noncollinear angle is experimentally demonstrated as a technique to broaden the gain bandwidth in optical parametric chirped-pulse amplification. With a pump beam centered at the supercontinuum signal is amplified in the range in a β-barium borate crystal with a gain . This represents a bandwidth improvement greater than 30% relative to conventional designs.
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