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The output of a commercial picosecond Ti:sapphire laser is mixed with the 514.5 nm line of a continuous wave Ar+ laser to produce 1.4 ps pulses between 1.295 and 1.7 μm. Noncritical temperature tuning of LiB3O5 has a number of advantages over the other two applicable crystals: β-BaB2O4 and KTiOPO4. The infrared pulse durations are measured by parametric amplification in KTiOPO4.
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Seifert et al. (1993) studied this question.
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