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

Luc Thevenaz; Stella Foaleng Mafang; Jie Lin

doi:10.1117/12.885084

17 May 2011 Impact of pump depletion on the determination of the Brillouin gain frequency in distributed fiber sensors

Luc Thevenaz, Stella Foaleng Mafang, Jie Lin

Proceedings Volume 7753, 21st International Conference on Optical Fiber Sensors; 775322 (2011) https://doi.org/10.1117/12.885084
Event: 21st International Conference on Optical Fibre Sensors (OFS21), 2011, Ottawa, Canada

Abstract

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.

Citation Download Citation

Luc Thevenaz, Stella Foaleng Mafang, and Jie Lin "Impact of pump depletion on the determination of the Brillouin gain frequency in distributed fiber sensors", Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 775322 (17 May 2011); https://doi.org/10.1117/12.885084

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