Optimal Probing Sequences for Polarization-Multiplexed Coherent Phase OTDR

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Nov 11, 2021
Christian Dorize, Elie Awwad, Sterenn Guerrier, Jérémie Renaudier
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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  
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