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Distributed temperature sensor system based on raman scattering using correlation-codes

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7 Author(s)
M. A. Soto ; Scuola Superiore Sant'Anna, Pisa ; P. K. Sahu ; S. Faralli ; G. Bolognini
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A distributed sensor system employing spontaneous Raman scattering with use of correlation-coding techniques and a single-detector scheme is discussed and experimentally characterised. A sensing distance of up to 8 km is achieved with high spatial and temperature resolutions; use of correlation-coding significantly reduces measurement time and allows use of low-power laser sources.

Published in:

Electronics Letters  (Volume:43 ,  Issue: 16 )