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Piel, J.; Beutter, M.; Riedle, Eberhard ORCID: 0000-0002-2672-5718 (February 2000): 20-50-fs pulses tunable across the near infrared from a blue-pumped noncollinear parametric amplifier. In: Optics Letters, Vol. 25, No. 3: pp. 180-182
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Abstract

A two-stage blue-pumped noncollinearly phase matched optical parametric amplifier was used to generate near-infrared pulses that were continuously tunable from 865 to 1600 nm. The pulse lengths scaled from 20 fs at the shorter wavelengths to below 50 fs at 1600 nm, with a nearly Fourier-transform-limited bandwidth. From 200 mu J Of 775-nm pump light at a 1-kHz repetition rate and a 130-fs duration, 7-2.5-mu J pulse energies were generated, corresponding to a typical quantum efficiency of 25% from blue to near-infrared light. (C) 2000 Optical Society of America. OCIS codes: 320.0320, 190.0190, 320.7080, 190.4970.