2 research outputs found
Monitoring of Optical Networks Using Correlation-Aided Time-Domain Reflectometry with Direct and Coherent Detection
We report on methods to monitor the transmission path in optical networks
using a correlation-based OTDR technique with direct and coherent detection. A
high probing symbol rate can provide picosecond-accuracy of the fiber
propagation delay, while a sensitive phase detection with a high repetition
rate allows the monitoring of dynamic effects in the vicinity of the fiber. We
discuss various approaches to evaluate the measured traces and show the results
of a few monitoring applications.Comment: Invited paper to OECC 2023, Shanghai, July 2-6, 202