Optimal Probing Sequences for Polarization-Multiplexed Coherent Phase OTDR
arXiv:2112.01848 · doi:10.1364/OFS.2020.T3.23
Abstract
We introduce dual-polarization probing codes based on two circularly shifted frequency sweep signals enabling perfect channel estimation. This is achieved with a probing length equal to at least twice the fiber round-trip propagation time.
Conference paper (27th International Conference on Optical Fiber Sensors), 4 pages, 7 figures