Micro quasi-Michelson interferometric fiber optics hydrophone based on refractive index modulation

Ruihua Pu; Wen Wang; Xueguang Qiao; Qiangzhou Rong

doi:10.1117/12.2504597

12 December 2018 Micro quasi-Michelson interferometric fiber optics hydrophone based on refractive index modulation

Ruihua Pu, Wen Wang, Xueguang Qiao, Qiangzhou Rong

Proceedings Volume 10850, Ocean Optics and Information Technology; 108500A (2018) https://doi.org/10.1117/12.2504597
Event: International Symposium on Optoelectronic Technology and Application 2018, 2018, Beijing, China

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.

Citation Download Citation

Ruihua Pu, Wen Wang, Xueguang Qiao, and Qiangzhou Rong "Micro quasi-Michelson interferometric fiber optics hydrophone based on refractive index modulation", Proc. SPIE 10850, Ocean Optics and Information Technology, 108500A (12 December 2018); https://doi.org/10.1117/12.2504597

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