Generation of synchronized femtosecond and picosecond pulses in a dual-wavelength femtosecond Ti:sapphire laser

摘要

We obtain synchronized 45-fs and 0.848-ps pulses by achieving cross-mode locking in a double-cavity dualwavelength femtosecond Ti:sapphire laser. Autocorrelation and cross correlation show that the femtosecond and picosecond pulses are well synchronized,with a timing jitter of 41 fs. Cross-phase modulation dominates the processes of cross-mode locking and synchronization.