AOPDF-shaped optical parametric amplifier output in the visible

英文摘要：

Time Shaping of ultrashort visible pulses has been performed using a specially designed Acousto-Optic Programmable Dispersive Filter of 50% efficiency at the output of a two-stage noncollinear optical parametric amplifier. The set-up is compact and reliable. It provides a tunable shaped source in the visible with unique features: 4 ps shaping window with preserved tunability over 500-650 nm, and pulses as short as 30 fs. Several $μ$J output energy is easily obtained.