Acoustic Sensing after 50 km of Transmission Fibre using Coherent Optical Subassembly
49th European Conference on Optical Communications (ECOC 2023)(2023)
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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