G - Physics – 01 – D
Patent
G - Physics
01
D
G01D 3/02 (2006.01) G01J 3/45 (2006.01) G01N 21/25 (2006.01) G01N 37/00 (2006.01) G01S 7/487 (2006.01)
Patent
CA 2690910
There is provided a method for referencing and correcting the beating spectrum generated by the interference of the components of a frequency comb source. The proposed method allows monitoring of variations of a mapping between the source and the beating replica. This can then be used to compensate small variations of the source in Fourier transform spectroscopy or in any other interferometry application in order to overcome the accuracy and measurement time limitations of the prior art. Constraints on source stability are consequently reduced.
La présente invention concerne un procédé permettant de référencer et de corriger le spectre de battement engendré par l'interférence des composants d'une source de peigne de fréquence. Le procédé proposé permet la surveillance des variations d'une correspondance entre la source et la réplique de battement. Celui-ci peut alors être utilisé pour compenser de petites variations de la source en spectroscopie par transformée de Fourier ou dans n'importe quelle autre application d'interférométrie afin de surmonter les limitations de précision et de temps de mesure de la technique antérieure. Les contraintes exercées sur la stabilité de la source sont par conséquent réduites.
Genest Jerome
Giaccari Philippe
Saucier Philippe
Tremblay Pierre
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Universite Laval
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