Ultralow jitter mode-locked lasers at 1.5 micron for a sub-femtosecond long-term stable timing distribution system

In this paper, the jitter performance of two identical commercial femtosecond lasers (Onefive-ORIGAMI) is characterized by using the balanced optical cross-correlators (BOC) method. The measurement result indicates an extremely low timing jitter, <;100 as, for frequencies greater than 1 kHz. This indicates that this type of lasers is well suited for the development of femtosecond timing distribution systems with sub-fs and eventually even sub-100 as precision over km distances, following the work presented.