OTM- and OTDR-based cost-efficient fiber fault identification and localization in Passive Optical Network

PON monitoring based on combined Optical Time Domain Reflectometry (OTDR) and Optical Transceiver Monitoring (OTM) is presented. The results on a 25-km 1∶32 PON prove the concept and show ∼0.02 dB accuracy with theoretical values.

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