Depletion in a distributed Brillouin fiber sensor: practical limitation and strategy to avoid it

Luc Thévenaz; Stella Foaleng Mafang; Jie Lin

doi:10.1117/12.899540

19 May 2011 Depletion in a distributed Brillouin fiber sensor: practical limitation and strategy to avoid it

Luc Thévenaz, Stella Foaleng Mafang, Jie Lin

Proceedings Volume 7753, 21st International Conference on Optical Fiber Sensors; 7753A5 (2011) https://doi.org/10.1117/12.899540
Event: 21st International Conference on Optical Fibre Sensors (OFS21), 2011, Ottawa, Canada

Abstract

Energy transfer between the interacting waves in a distributed Brillouin sensor can result in a distorted measurement of the local Brillouin gain spectrum, leading to systematic error. We demonstrate here that this behavior can be fully and precisely modeled, and an excellent quantitative agreement is found with experimental tests. Strict guidelines can be enunciated from this description to make the impact of depletion negligible, for any type and any length of fiber.

Citation Download Citation

Luc Thévenaz, Stella Foaleng Mafang, and Jie Lin "Depletion in a distributed Brillouin fiber sensor: practical limitation and strategy to avoid it", Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 7753A5 (19 May 2011); https://doi.org/10.1117/12.899540

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