Interferometer with frequency combs and synchronisation scheme

Details Interferometer with frequency combs and synchronisation scheme Interferometer with frequency combs and synchronisation scheme

G - Physics

01

J

G01J 3/453 (2006.01)

Patent

CA 2731303

The 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 the 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 this beating signal and using it as a trigger or as a clock for the acquisition unit device recording the beating interference signal between the entire frequency components of the first and the second frequency combs.

La présente invention concerne un interféromètre qui comprend : 1) un premier peigne de fréquence, 2) un second peigne de fréquence adapté pour présenter une interaction avec le premier peigne de fréquence afin de produire des interférences, 3) des moyens pour isoler le signal de battement entre un sous-ensemble de composants de fréquence parmi les composants de fréquence des deux peignes, ce sous-ensemble de composants de fréquence étant de préférence, mais non nécessairement, une ligne unique du premier peigne de fréquence et une ligne unique du second peigne de fréquence, 4) des moyens pour surveiller ce signal de battement et lutiliser en tant que déclenchement ou en tant quhorloge pour lunité dacquisition qui enregistre le signal dinterférence de battement entre les composants de fréquence entiers des premier et second peignes de fréquence.

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