Frequency-domain technique to measure the inertial response of forward stimulated Brillouin scattering for acoustic impedance sensing

Desmond M. Chow; Marcelo A. Soto; Luc Thévenaz

doi:10.1117/12.2265736

23 April 2017 Frequency-domain technique to measure the inertial response of forward stimulated Brillouin scattering for acoustic impedance sensing

Desmond M. Chow, Marcelo A. Soto, Luc Thévenaz

Author Affiliations +

Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 1032311 (2017) https://doi.org/10.1117/12.2265736
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of

Abstract

A frequency-domain method is proposed to measure the inertial response of forward stimulated Brillouin scattering, so that the acoustic impedance of a liquid medium outside an uncoated 30 m standard single-mode fibre can be sensed. The proposed technique overcomes the linewidth distortion present in the time-domain approach due to Kerr effect and reduce time and complexity for data post-processing. Experimental results demonstrate that acoustic impedances of water and ethanol agree well with the expected values.

Citation Download Citation

Desmond M. Chow, Marcelo A. Soto, and Luc Thévenaz "Frequency-domain technique to measure the inertial response of forward stimulated Brillouin scattering for acoustic impedance sensing", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 1032311 (23 April 2017); https://doi.org/10.1117/12.2265736

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