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AssigneeADVA Optical Networking SE
InventorsDavid FOX, Lawrence T. DILLARD, III, Neil GRAYSON
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A monitoring apparatus for detecting uncharacteristic short-term power level changes of an optical signal transmitted through an optical fiber, said monitoring apparatus comprising a power level variance calculation unit adapted to calculate a power level variance on the basis of a long-term power level and a current power level of said optical signal and a short-term variance filter adapted to filter transient changes indicated by the calculated power level variance and to generate a trouble occurrence indication indicating an uncharacteristic short-term power level change, if the filtered power level variance exceeds a predetermined power level variance.
A monitoring apparatus for detecting uncharacteristic power level changes of an optical signal transmitted through an optical fiber,said monitoring apparatus comprising:
A method for detecting uncharacteristic short-term power level changes of an optical signal transmitted through an optical fiber said method comprising the steps of:
A method for detecting uncharacteristic short-term and/or long-term power level changes or fluctuations of an optical signal transmitted through an optical fiber to a transceiver wherein
Dependencies are inferred from the claim text.