Optical device system and method for detecting a condition...

Details Optical device system and method for detecting a condition... Optical device system and method for detecting a condition...

H - Electricity

04

B

H04B 10/08 (2006.01)

Patent

CA 2403492

An optical device and system and method for monitoring a fault condition in an optical device. A loop-back path couples a portion of an optical signal from a first transmission path to a second transmission path as a loop-back signal. The loop-back path includes at least one optical attenuator configured to attenuate the loop-back signal in response to at least one detected condition. The loop-back signal may be detected by line monitoring equipment, where the attenuation imparted by the attenuator is interpreted as corresponding to the detected condition.

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