A tuneable optical filter

H - Electricity – 04 – J

Patent

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Details

H04J 14/02 (2006.01) G02B 26/00 (2006.01) H04B 10/158 (2006.01)

Patent

CA 2378133

The present invention relates to a device and a method for wavelength selective filtration of optical wavelength channels. The wavelength selective filter (1) includes one or more wavelength selective add-drop elements (10, 12, 14 and 16) and one or more on-off switches (20, 22, 24 and 26), wherein a first and a second side of the wavelength selective add-drop elements (10, 12, 14 and 16) includes an input and an output, wherein said on-off switches (20, 22, 24 and 26) are disposed between said input and output on the second side of the wavelength-selective add-drop elements (10, 12, 14 and 16), and wherein in the event of more than one wavelength selective add-drop element said elements are interconnected by means of a connecting waveguide between respective outputs and inputs on the first side of respective wavelength selective add-drop elements.

L'invention concerne un dispositif et un procédé de filtration sélective à longueurs d'onde de porteuses de longueurs d'onde optique. Le filtre (1) sélectif à longueurs d'onde comprend un ou plusieurs éléments (10, 12, 14 et 16) d'insertion-extraction sélective à longueurs d'onde et un ou plusieurs interrupteurs marche-arrêt (20, 22, 24 et 26). Un premier et un second côté de ces éléments (10, 12, 14 et 16 comprennent une entrée et une sortie. Les interrupteurs marche-arrêt (20, 22, 24 et 26) sont placés entre ladite entrée et ladite sortie sur le second côté des éléments (10, 12, 14 et 16). Dans le cas ou il y a plus d'un élément d'insertion-extraction sélective à longueurs d'onde, ces éléments sont interconnectés au moyen d'un guide d'onde intermédiaire entre les sorties et les entrées respectives sur le premier côté de chacun de ces éléments.

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