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We experimentally demonstrate group velocity control of 40-fs, 1400-nm pulses through chi(2)-cascaded interactions under large group velocity mismatch. Group delay shifts up to 50 fs are achieved by propagation in a 25-mm-long PPSLT crystal.
We experimentally demonstrate the group velocity tuning of ultra-short pulses through chi(2)-cascaded interactions. Group delay shifts up to 50 fs are achieved by propagating 40 fs pulses around 1400 nm in a 25-mm-long periodically-poled stoichiometric lithium-tantalate crystal
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