Real time wavelength monitoring circuit

H - Electricity – 04 – J

Patent

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Details

H04J 14/02 (2006.01) G02B 6/34 (2006.01) H04B 10/08 (2006.01) H04B 10/155 (2006.01)

Patent

CA 2330791

A real time multi-channel wavelength monitoring circuit for monitoring Wavelength Division Multiplexing (WDM) communications networks is disclosed. The monitoring circuit monitors the wavelength of an input signal by providing center offset inputs to a Phased Array Waveguide Grating (PAWG, 170). By providing center offset inputs to a PAWG (170) the passband crossover point can be changed optimizing a different dynamic range and wavelength resolution.

L'invention porte sur un circuit de surveillance de longueur d'onde en temps réel, à plusieurs canaux, destiné à surveiller des réseaux de communications utilisant le multiplexage par répartition en longueur d'onde. Pour surveiller la longueur d'onde d'un signal d'entrée, ce circuit fournit des entrées décentrées à un réseau de guide d'onde d'antenne réseau à commande de phase (PAWG, 170). Cette façon de procéder permet de déplacer le point de croisement de la bande passante tout en donnant une autre plage dynamique et une autre résolution de longueur d'onde optimisées.

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