Abstract

We report on the generation of sub-30-fs near-IR light pulses by means of broadband four-wave parametric amplification in fused silica. This is achieved by frequency downconversion of visible broadband pulses provided by a commercial blue-pumped beta-barium borate crystal-based noncollinear optical parametric amplifier. The proposed method produces the IR idler pulses with energy up to 20μJ and tunable in wavelength from 1 to 1.5μm. The shortest pulse duration is 17.6fs, measured at 1.2μm.

© 2011 Optical Society of America

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