2023/06/06 by Michael Eiselt, Eiselt, Michael H., Florian Azendorf +7
Engineering · #Advanced Fiber Optic Sensors #Advanced Photonic Communication Systems #FOS: Electrical engineering #FOS: Physical sciences #Optics (physics.optics) #Photonic and Optical Devices #Signal Processing (eess.SP) #electronic engineering #information engineering
paper · pdf · doi:10.48550/arxiv.2306.03455
openalex publication_date 2023/06/06 · openalex created_date 2023/06/09 · openalex updated_date 2026/07/28
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.