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Simplex-coded BOTDA fiber sensor with 1 m spatial resolution over a 50 km range | Synapse

January 14, 2010Optics Letters240 citationsOpen Access

Simplex-coded BOTDA fiber sensor with 1 m spatial resolution over a 50 km range

MSMarcelo A. SotoFederico Santa María Technical University GBGabriele BologniniBologna Research Area FPFabrizio Di PasqualeScuola Superiore Sant'Anna

Key Points

This research aims to improve the performance of long-range distributed fiber sensors using optical coding techniques.
Proposed optical pulse coding techniques for BOTDA sensors
Evaluated temperature and strain measurements over 50 km of fiber
Achieved 1 m spatial resolution with specified accuracy metrics
Achieved 1 m spatial resolution over a 50 km range
Temperature measurement accuracy of 2.2 degrees C
Strain measurement accuracy of 44 microstrain

Abstract

In this Letter, we propose the use of optical pulse coding techniques for long-range distributed sensors based on Brillouin optical time-domain analysis (BOTDA). Compared to conventional BOTDA sensors, optical coding provides a significant sensing-range enhancement, allowing for temperature and strain measurements with 1 m spatial resolution over 50 km of standard single-mode fiber, with an accuracy of 2.2 degrees C/44 muepsilon, respectively.

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Cite This Study

Soto et al. (Thu,) studied this question.

synapsesocial.com/papers/6a230799c650520b07cb2a43 https://doi.org/https://doi.org/10.1364/ol.35.000259