Acoustic Sensing after 50 km of Transmission Fibre using Coherent Optical Subassembly

Florian Azendorf,André Sandmann, Wolfgang Reimer,Michael Eiselt

49th European Conference on Optical Communications (ECOC 2023)（2023）

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摘要

A coherent optical subassembly (COSA) is evaluated for coherent-correlation optical time domain reflectometry (CC-OTDR) based fibre sensing. Even though the COSA was originally designed for digital communication applications, acoustic signals with frequencies up to 360 Hz can be detected after 50 km of transmission.

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