@article{857,
  author = {R. Shelton and S. Foreman and L.-S. Ma and John Hall and Henry Kapteyn and Margaret Murnane and M. Notcutt and Jun Ye},
  title = {Subfemtosecond timing jitter between two independent, actively synchronized, mode-locked lasers},
  abstract = {With the implementation of a fast-bandwidth servo, along with improved laser construction and associated better passive stability, we have achieved subfemtosecond relative timing jitter between two independent, actively synchronized, mode-locked Ti:sapphire lasers. Timing jitter of 0.58 fs is obtained with a 160-Hz observation bandwidth over several seconds. Within a 2-MHz observation bandwidth, the timing jitter is 1.75 fs. Excellent repeatability and rapid speed in setting an arbitrary time delay between two pulses are also demonstrated.},
  year = {2002},
  journal = {Optics Letters},
  volume = {27},
  pages = {312},
  month = {2002-03},
  issn = {0146-9592},
  doi = {10.1364/OL.27.000312},
}