Publication

Extending the sensing range of Brillouin optical time-domain analysis up to 325 km combining four optical repeaters

Luc Thévenaz, Flavien Gyger
2014
Conference Papers

Abstract

A novel scheme is proposed to extend the sensing range of Brillouin optical time-domain analyzers (BOTDA). Specially-designed erbium doped fiber amplifier (EDFA) repeaters are located every 65km fiber along the sensing cable to achieve a total sensing length of 325km, corresponding to a 650km loop. At the end of the sensing fibre, we experimentally demonstrated a measurement repeatability of 2°C (2σ) using a three meters spatial resolution.

Official source

https://infoscience.epfl.ch/entities/publication/ed7e26db-d224-4e68-a796-82b99d6aad2b

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Extending the sensing range of Brillouin optical time-domain analysis up to 325 km combining four optical repeaters

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