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A Simple Technique for Reducing Pump Depletion in Long-Range Distributed Brillouin Fiber Sensors

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3 Author(s)
Minardo, A. ; Dept. of Inf. Eng., Second Univ. of Naples, Aversa ; Bernini, R. ; Zeni, L.

We present a technical solution, capable of alleviating the problem of pump depletion in a long-range Brillouin distributed fiber sensor. This solution takes advantage of the presence of two sidebands in the probe wave to generate a dual gain-loss Brillouin interaction, giving rise to reduced pump depletion. Experimental results, carried out by using a Brillouin optical frequency-domain analysis configuration, demonstrated the improvement offered by the gain-loss technique.

Published in:

Sensors Journal, IEEE  (Volume:9 ,  Issue: 6 )