Investigation on pressure sensitivity of fiber optic mandrel hydrophone

Wentao Zhang; Yuliang Liu; Fang Li

doi:10.1117/12.726503

5 March 2007 Investigation on pressure sensitivity of fiber optic mandrel hydrophone

Wentao Zhang, Yuliang Liu, Fang Li

Proceedings Volume 6595, Fundamental Problems of Optoelectronics and Microelectronics III; 659544 (2007) https://doi.org/10.1117/12.726503
Event: Fundamental Problems of Optoelectronics and Microelectronics III, 2006, Harbin, China

Abstract

Pressure sensitivity of the fiber optic mandrel hydrophone is analyzed in this paper. Based on the theory of elasticity, the mechanism of the pressure response is studied. The influence of the optical fiber on the compliant mandrel on the pressure response is taken into consideration for the first time. The radial deformation of the mandrel under the pressure of the fiber optic and the underwater pressure is analyzed in details. Based on the theory of photo-elasticity, the phase shift of the Mach-Zehnder interferometer is given. The pressure sensitivity is evaluated both theoretically and experimentally, and the results show a good correlation between the theoretical and experimental results.

Citation Download Citation

Wentao Zhang, Yuliang Liu, and Fang Li "Investigation on pressure sensitivity of fiber optic mandrel hydrophone", Proc. SPIE 6595, Fundamental Problems of Optoelectronics and Microelectronics III, 659544 (5 March 2007); https://doi.org/10.1117/12.726503

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