DOI: 10.5687/sss.2017.56
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Abstract: Recent advances in Brillouin optical time-domain reflectometry (BOTDR) technology have enabled the high resolution distributed fiber optic sensing of strain and temperature. However, a high spatial resolution BOTDR, such as a synthetic BOTDR (S-BOTDR), has a weak point: the spectrum's signal-to-noise (SNR) is lower than conventional BOTDRs. To overcome this weak point, we propose a coded S-BOTDR using a Golay code sequence. The coded S-BOTDR's spectrum agrees with that of S-BOTDR on average; hence the high spa… Show more

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