Abstract
We report traveling-wave optical parametric generation in short (2-mm) samples with reduced anomalous absorption, using femtosecond pump pulses near . The signal and the idler waves generated could be tuned from 2.5 to , and they extend the tunability of the -barium borate optical parametric generator used as a pump source to the mid-infrared. At a single-pass internal conversion efficiency of 2.5% we estimate pulse durations of 75 fs (signal near ) and 200 fs (idler near ).
© 1999 Optical Society of America
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