Uyar, F.Onat, T.Unal, C.Kartaloǧlu, T.Ozdur, I.Özbay, E.2025-10-202025-10-202019155752191397815575293981557527024155752529397815106297901557525900155752385115575278491557524688978155752893397819435805762162-2701https://doi.org/10.1364/CLEO_AT.2019.AF1K.7https://hdl.handle.net/20.500.12573/5150This work demonstrates an ultra-long range direct detection fiber optic distributed acoustic sensor which can detect vibrations at a distance of 94.8 km with 10 m resolution along the sensing fiber. © 2023 Elsevier B.V., All rights reserved.eninfo:eu-repo/semantics/closedAccessConference Object10.1364/CLEO_AT.2019.AF1K.72-s2.0-85068156559