Procedure and device for creating an optical output signal

Details Procedure and device for creating an optical output signal Procedure and device for creating an optical output signal

H - Electricity

04

B

H04B 10/04 (2006.01) H04B 10/155 (2006.01)

Patent

CA 2242257

A procedure for creating an optical output signal (S') in which two optical signal parts (S1, S2) of different frequencies are created from an optical signal (S) of a fixed frequency (v o), whereby one of the optical signal parts (S1, S2) has a data signal (D) impressed and both optical signal parts (S1, S2) together form the optical output signal (S'), the optical signal (S) is fed to two branches (4, 5), two optical sideband carriers (v o-f m, v o+f m) are created in one of the two branches (4, 5) with regard to the optical signal (S), one sideband carrier of which is removed, the optical signal (S) in one of the two branches (4, 5) has a data signal (D) impressed and both divided optical signal parts (S1, S2) are then brought back together to form one single optical output signal (S'). In this way the effort required for creating both optical signal parts and/or the optical output signal can be reduced.

L'invention est une procédure servant à produire un signal lumineux (S ) dans lequel deux composantes (S1, S2) de fréquences différentes sont créées à partir d'un signal lumineux (S) de fréquence fixe (v o), l'une de ces composantes de signal lumineux (S1, S2) portant un signal de données (D) incorporé et les deux composantes (S1, S2) formant le signal lumineux de sortie (S ). Le signal lumineux (S) est transmis à deux branchements (4, 5) et deux porteuses de bande latérale lumineuse (v o-f m, v o+f m) sont créées dans l'un des deux branchements (4, 5) par rapport au signal lumineux (S) dont l'une des porteuses de bande latérale est supprimée. Dans l'un des deux branchements (4, 5), le signal lumineux (S) porte un signal de données (D) incorporé et les deux composantes de signal lumineux (S1, S2) sont regroupées ensemble pour former le signal lumineux de sortie (S ). De cette façon, on peut réduire le travail nécessaire pour produire les deux composantes d'un signal lumineux et/ou le signal lumineux de sortie.

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