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Infrared light pulses as short as 70 fs that are nearly bandwidth limited are obtained in a simple double-pass optical parametric generator with a single beta-barium borate nonlinear crystal. Tunability in the 1.2-1.3microm range is demonstrated with sub-100-fs pulse duration, microjoule pulse energy, and 1-kHz repetition rate.
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Seifert et al. (1994) studied this question.
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