Generation of broadly tunable sub-30-fs infrared pulses by four-wave optical parametric amplification |
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Authors: | Rubino E Darginavicius J Faccio D Di Trapani P Piskarskas A Dubietis A |
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Institution: | CNISM and Department of Physics and Mathematics, Università dell'Insubria, Como, Italy. |
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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 ~20 μJ and tunable in wavelength from 1 to 1.5 μm. The shortest pulse duration is 17.6 fs, measured at 1.2 μm. |
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