Distributed Optical Fiber Sensing Based on Rayleigh Scattering

By Luca Palmieri, Luca Schenato. 2013

183 citations recorded by the source corpus.

Optical fiber sensors offer unprecedented features, the most unique of which is the ability of monitoring varia- tions of the observed physical field with spatial continuity along the fiber. These distributed optical fiber sensors are based on the scattering processes that originate from the interaction between light and matter. Among the three different scatter- ing processes that may take place in a fiber—namely Rayleigh, Raman and Brillouin scattering, this paper focuses on Rayleigh-based distributed optical fiber sensors. For a given optical frequency, Rayleigh-based sensors exploit the three main properties of light: intensity, phase and polarization. All these sensing mechanisms are reviewed, along with basic principles, main acquisition techniques and fields of application. Emphasis, however, will be put on polarization-based distributed optical fiber sensors. While they currently represent a niche, they offer promising unique features worth being considered in greater detail.

Subfields: Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/86b5419b13ad58b91db222042c69aaee978608f3

How researchers see this paper

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In Electrical and Electronic Engineering

1. António Barrias
2. Sergi Villalba
3. Joan Ramon Casas
4. Luca Palmieri
5. Luca Schenato

Citations in the corpus

• A Review of Distributed Optical Fiber Sensors for Civil Engineering Applications (2016, methodology): “Notwithstanding, the OBR technique, with its high spatial resolution, even if limited to some hundred meters, addresses some applications that aren’t easily covered either by Brillouin- or by Raman-based DOFSs [72].”
• Crack monitoring in reinforced concrete beams by distributed optical fiber sensors (2020, background): “These inhomogeneities are caused by fluctuations in the density and composition of the fiber core, which makes Rayleigh scattering sensitive to both mechanical strain and temperature changes (Palmieri, 2013).”