Impact of pump depletion on the determination of the Brillouin gain frequency in distributed fiber sensors

Impact of pump depletion on the determination of the Brillouin gain frequency in distributed fiber sensors

The energy transfer between the two interacting optical waves in a distributed sensor based on stimulated Brillouin scattering can lead to a non-uniform spectral distribution of the pumping power after a long propagation. This results in a spectrally distorted gain that biases the determination of t...

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Hauptverfasser: Thévenaz, Luc, Foaleng Mafang, Stella, Lin, Jie
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creator Thévenaz, Luc
Foaleng Mafang, Stella
Lin, Jie
description The energy transfer between the two interacting optical waves in a distributed sensor based on stimulated Brillouin scattering can lead to a non-uniform spectral distribution of the pumping power after a long propagation. This results in a spectrally distorted gain that biases the determination of the maximum gain frequency. A quantitative analytical model gives an expression for the tolerable pump power change keeping the maximum bias within a given accuracy.
doi_str_mv 10.1117/12.885084
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title Impact of pump depletion on the determination of the Brillouin gain frequency in distributed fiber sensors
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