INTERFEROMETER WITH FREQUENCY COMBS AND POSTERIORI CORRECTION SCHEME

摘要

The present invention relates to an interferometer comprising: 1 ) a first frequency comb 2) a second frequency comb adapted to interact with the first frequency comb in order to produce interferences. 3) means for isolating at least one beating signal between a subset of frequency components among the frequency components of the two combs. This subset of frequency components is preferably but not necessarily a single line of the first frequency comb and a single line of the second frequency comb. 4) means for monitoring at constant time intervals, simultaneously, at least this beating signal between a subset of frequency components among the frequency components of the two combs and the beating interference signal between the entire frequency components of the first and the second frequency combs.