Device for extraction and re-insertion of an optical carrier...

Details Device for extraction and re-insertion of an optical carrier... Device for extraction and re-insertion of an optical carrier...

H - Electricity

04

B

H04B 10/06 (2006.01) G02F 1/09 (2006.01) G02F 1/31 (2006.01) G02F 2/00 (2006.01) H04B 10/213 (2006.01) H04J 14/02 (2006.01)

Patent

CA 2129779

ABSTRACT A device for extraction and reinsertion of an optical carrier in an optical communication network includes a first optical circulator connected in series with the line in order to receive a signal stream including a carrier to be extracted, modulated by an information signal, and to transmit a signal stream including the same carrier, re-inserted into the stream after having being modulated with another information signal, and a second optical circulator connected to local information processing apparatus, to which it supplies the extracted carrier and from which it receives the carrier to be re-inserted. Between the two circulators there is an optical fibre bandpass filter that can be tuned to the carrier wavelength.

La présente invention a pour objet un dispositif permettant d'extraire et de réintroduire un support optique dans un réseau de télécommunication optique; le dispositif en question comporte un circulateur optique connecté en série à la ligne, de manière à recevoir un train de signaux incluant un transporteur à extraire, modulé par un signal d'information, et de manière à transmettre un train de signaux incluant le même transporteur pour réintroduction dans le flux après modulation avec un autre signal d'information; un deuxième circulateur optique est connecté à un système local de traitement de l'information auquel il transmet le support extrait et duquel il reçoit le transporteur à réintroduire. Entre les deux circulateurs se trouve un filtre passe-bande optique qui peut être syntonisé à la même longueur d'onde que le transporteur.

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