Laser mode locking over one octave: route to phase-stable few-cycle pulse generation

摘要

6-fs, 1-MW laser pulses have been produced at the full repetition rate of a mode-locked laser upon simultaneous synthesization of phase-locked laser modes over the spectral range extending from 500 nm to 1100 nm, opening the door to the measurement and stabilization of the absolute phase of few-cycle light pulses by use time- and frequency-domain techniques, respectively.