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Proceedings Paper

DFB fiber laser hydrophone enhanced through polyurethane end surface pulling
Author(s): Tang Bo; Junbin Huang; Hongcan Gu; Xin Mao
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Paper Abstract

A fiber laser hydrophone enhancing sensitivity through polyurethane end surface pulling is presented. After the relation between acoustic pressure sensitivity, dynamic performance and polyurethane material of the hydrophone are respectively described by theoretical model and ANSYS simulation, the polyurethane used for enhancing whose parameters are optimized is prepared. Prototypes of the hydrophone are fabricated and tested in vibration liquid column and Qiandao Lake experimental field. The average acoustic pressure sensitivity is -142.70dB(0dB=1rad/μPa)with the fluctuation less than ±2dB in the frequency range of 10~2000Hz. The result shows that DFB fiber laser encapsulated by polyurethane end surface ensures the high sensitivity, its fluctuation used in underwater sound detection is restrained at the same time, which is of great significance to promote the engineering application of fiber laser hydrophone.

Paper Details

Date Published: 25 October 2016
PDF: 6 pages
Proc. SPIE 9686, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices, 96860U (25 October 2016); doi: 10.1117/12.2242702
Show Author Affiliations
Tang Bo, Naval Univ. of Engineering (China)
Junbin Huang, Naval Univ. of Engineering (China)
Hongcan Gu, Naval Univ. of Engineering (China)
Xin Mao, Naval Univ. of Engineering (China)


Published in SPIE Proceedings Vol. 9686:
8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices
Yadong Jiang; Bernard Kippelen; Junsheng Yu, Editor(s)

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