Fiber laser vector hydrophone: theory and experiment

Wentao Zhang; Faxiang Zhang; Rui Ma; Jun He; Fang Li; Yuliang Liu

doi:10.1117/12.886052

17 May 2011 Fiber laser vector hydrophone: theory and experiment

Wentao Zhang, Faxiang Zhang, Rui Ma, Jun He, Fang Li, Yuliang Liu

Proceedings Volume 7753, 21st International Conference on Optical Fiber Sensors; 77533D (2011) https://doi.org/10.1117/12.886052
Event: 21st International Conference on Optical Fibre Sensors (OFS21), 2011, Ottawa, Canada

Abstract

A novel fiber laser vector hydrophone (FLVH) based on accelerometers is presented. Three fiber laser accelerometers (FLA), perpendicular to each other, are used to detect the acoustic induced particle acceleration. Theoretical analyses of the acoustic sensitivity and the natural frequency are given. Experiment shows a sensitivity of 0.1 pm/Pa@100 Hz is achieved, which results in a minimum detectable acoustic signal of 100 μPa/@Hz@100 Hz. Field demonstration shows that the proposed vector hydrophone has good directivity.

Citation Download Citation

Wentao Zhang, Faxiang Zhang, Rui Ma, Jun He, Fang Li, and Yuliang Liu "Fiber laser vector hydrophone: theory and experiment", Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77533D (17 May 2011); https://doi.org/10.1117/12.886052

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