Sub-5-fs pulses: Generation, characterisation, and experiments

Abstract

We present a sub-5-fs 1-MHz-repetition-rate all-solid-state laser system based on the fibre-compression of the output of a cavity-dumped Ti:sapphire oscillator. Frequency-resolved optical gating is applied to measure precisely the phase correction needed for the compression, and to characterise the 4.5-fs pulses. The applications of the developed laser in nonlinear experiments on liquid-phase dynamics are discussed.