@article{814656, author = {L Ma and R Shelton and H Kapteyn and M Murnane and Jun Ye}, title = {Sub-10-Femtosecond Active Synchronization Between Two Passively Mode-Locked Ti: Sapphire Oscillators}, year = {2021}, month = {2021-10-12 15:10:21}, publisher = {Physical Review Letters}, language = {en}, }