Optical sampling by modulating a pulse train

G - Physics – 02 – F

Patent

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Details

G02F 1/21 (2006.01) G02F 1/35 (2006.01) G02F 2/00 (2006.01) H04B 10/14 (2006.01) H04B 10/145 (2006.01) H04B 10/17 (2006.01) H04J 14/08 (2006.01) H04L 7/00 (2006.01) H04L 7/027 (2006.01) H04L 7/033 (2006.01)

Patent

CA 2222666

An interferometer, such as a Mach-Zehnder type is fed with a pulse train. One arm is fed with a data stream, so as to modulate the pulse train according to the data stream. This enables the data stream to be regenerated, or sampled without converting from optical form into electrical form. Thus all optical regeneration, multiplexing, demultiplexing or retiming to remove jitter, can be achieved. An optical amplifier (20) in one arm of the interferometer enables the interference condition of the interferometer to be varied, to cause the pulse train to be modulated by the data.

Un interféromètre, tel qu'un interféromètre du type Mach-Zehnder, reçoit un train d'impulsions. L'un de ses bras reçoit une chaîne de données pour moduler ce train d'impulsions. Ceci permet de régénérer ou d'échantillonner cette chaîne de données sans conversion des signaux lumineux en signaux électriques. De cette façon, toutes les opérations de régénération, de multiplexage, de démultiplexage et de resynchronisation des signaux lumineux pour en supprimer le sautillement peuvent être effectuées. Un amplificateur optique (20) monté sur l'un des bras de l'interféromètre permet de faire varier les conditions d'interférence pour moduler le train d'impulsions avec les données.

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