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 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.


Published in:
Proc. SPIE, 7753, 775322
Presented at:
21st International Conference on Optical Fiber Sensors, Ottawa, Canada, May 15-19, 2011
Year:
2011
Publisher:
SPIE
Keywords:
Laboratories:




 Record created 2011-05-23, last modified 2018-03-18

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