Process and device to reshape binary signals

Details Process and device to reshape binary signals Process and device to reshape binary signals

H - Electricity

04

B

H04B 10/02 (2006.01) H04B 10/17 (2006.01) H04J 14/08 (2006.01) H04L 7/00 (2006.01) G02B 6/28 (2006.01) H04L 7/033 (2006.01)

Patent

CA 2232526

To resynchronize and format a binary signal (S) of bit time T0, the process consists in: - formatting p sampled signals (S.lambda.a-S.lambda.d) obtained by modulation by the signal S of frequency pulses 1/T0, of duration substantially equivalent to T0/p and carried by p optical carriers of different wavelengths (.lambda.a-.lambda.d); - combining delayed signals obtained by applying to the sampled signals (S.lambda.a-S.lambda.d) delays such that any two consecutive delayed signals will exhibit a time separation of T0/p. Application to optical communications systems.

Afin de resynchroniser et mettre en forme un signal binaire (S) de temps bit T0, le procédé consiste : - à former p signaux échantillonnés (S.lambda.a-S.lambda.d) obtenus par modulations par le signal (S) d'impulsions de fréquence 1/T0, de durée sensiblement égale à T0/p et portées par p porteuses optiques de longueurs d'onde différentes (.lambda.a-.lambda.d), - à combiner des signaux retardés obtenus en appliquant aux signaux échantillonnés (S.lambda.a-S.lambda.d) des retards tels que deux signaux retardés consécutifs quelconques soient décalés temporellement de T0/p. Application aux systèmes de communication optiques.

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