Patent ID: 8078060

Claim:
A high accuracy optical synchronization system comprising: a) an input laser system capable of generating an input laser signal, with an associated input laser signal frequency, from a first continuous wave laser and a second continuous wave laser located environmentally independent of the first continuous wave laser; and b) means for synchronizing within a few femtoseconds the input laser signal among a plurality of synchronized lasers, wherein the means for synchronizing comprises: a) locking a first wavelength λ 1 to a first frequency component of the input laser system signal to the first continuous wave laser operating at wavelength λ 1 ; b) locking a second wavelength λ 2 to a second frequency component of the input laser system signal to the second continuous wave laser operating at wavelength λ 2 ; and c) transmitting to one or more distant laser systems to be temporally locked to the input laser system: i) a λ 1 output from the first continuous wave laser operating at wavelength λ 1 and ii) a λ 2 output from the second continuous wave laser operating at wavelength λ 2 .