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Proceedings Paper

Research on ultrasonic hydrophone based on polarization properties of FBG
Author(s): Yang Su; Baofu Zhang; Hua Zhou; Yong Zhu; Feng Wang
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Paper Abstract

We demonstrate a novel fiber-optic hydrophone that use a fiber Bragg grating (FBG) as a sensing element. The operation principle is based on the modulation of birefringence of the FBG by high-frequency ultrasound. By measuring the amplitude of the first Stokes parameters of the transmitted light in FBG using a in line polarimeter, the amplitude and frequency of acoustic pressure can be determined. The FBG hydrophone has a linear response to acoustic pressure, and the sensitivity and dynamic range of the sensor are studied.

Paper Details

Date Published: 20 December 2013
PDF: 7 pages
Proc. SPIE 9044, 2013 International Conference on Optical Instruments and Technology: Optical Sensors and Applications, 90440Z (20 December 2013); doi: 10.1117/12.2036930
Show Author Affiliations
Yang Su, PLA Univ. of Science and Technology (China)
Baofu Zhang, PLA Univ. of Science and Technology (China)
Hua Zhou, PLA Univ. of Science and Technology (China)
Yong Zhu, PLA Univ. of Science and Technology (China)
Feng Wang, Nanjing Univ. (China)


Published in SPIE Proceedings Vol. 9044:
2013 International Conference on Optical Instruments and Technology: Optical Sensors and Applications
Brian Culshaw; Xuping Zhang; Anbo Wang, Editor(s)

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