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Micro quasi-Michelson interferometric fiber optics hydrophone based on refractive index modulation
Author(s): Ruihua Pu; Wen Wang; Xueguang Qiao; Qiangzhou Rong
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Paper Abstract

The exploration and utilization of marine resources is one of the most important topics in human development. In this paper, a fiber-optic hydrophone was proposed and demonstrated experimentally for submarine ultrasonic detection. The device contained a refractive index modification window in the cladding of tapered fiber-optics tip, making it as a quasi-Michelson interferometer. Moreover, a plastic cone structure was formed and employed to focus the ultrasonic field on the fiber, which highly promote the coupling efficiency of ultrasonic-to-interferometer. Using the spectral-side band filtering technology, the hydrophone was working well for ultrasonic wave detection.

Paper Details

Date Published: 12 December 2018
PDF: 4 pages
Proc. SPIE 10850, Ocean Optics and Information Technology, 108500A (12 December 2018); doi: 10.1117/12.2504597
Show Author Affiliations
Ruihua Pu, Northwest Univ. (China)
Wen Wang, Northwest Univ. (China)
Xueguang Qiao, Northwest Univ. (China)
Qiangzhou Rong, Northwest Univ. (China)

Published in SPIE Proceedings Vol. 10850:
Ocean Optics and Information Technology
Xuelong Li; Lixin Wu; Jianquan Yao; Hao Yin; Renhe Zhang; Zhongliang Zhu, Editor(s)

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