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Proceedings Paper

High performance four-element DFB fiber laser hydrophone array system
Author(s): Zhihui Sun; Li Min; Xiaolei Zhang ; Jiasheng Ni ; Haifeng Qi; Yingying Wang; Chang Wang; Jun Chang; Gangding Peng
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Paper Abstract

A high performance four-element DFB fiber laser hydrophone array system has been developed and tested. The system has the advantages of low noise floor (<10-6pm/√Hz @ 1 kHz) and wide bandwidth. Acoustic pressure sensitivity of DFB fiber laser hydrophone is 115±3dB re. Hz/Pa. Unbalanced Michelson interferometer and digital phase-generated carrier (PGC) demodulation are adopted to realize high resolution fiber laser wavelength shift demodulation. Four-element DFB fiber laser hydrophone array system performance is tested and its noise equivalent pressure (NEP) is below sea state zero (SS0). The theory analysis, design, development and test of the system are demonstrated in detail.

Paper Details

Date Published: 30 November 2012
PDF: 8 pages
Proc. SPIE 8561, Advanced Sensor Systems and Applications V, 856107 (30 November 2012); doi: 10.1117/12.2001185
Show Author Affiliations
Zhihui Sun, Shandong Academy of Sciences (China)
Li Min, Shandong Academy of Sciences (China)
Xiaolei Zhang , Shandong Academy of Sciences (China)
Jiasheng Ni , Shandong Academy of Sciences (China)
Haifeng Qi, Shandong Academy of Sciences (China)
Yingying Wang, Shandong Academy of Sciences (China)
Chang Wang, Shandong Academy of Sciences (China)
Jun Chang, Shandong Univ. (China)
Gangding Peng, The Univ. of New South Wales (Australia)


Published in SPIE Proceedings Vol. 8561:
Advanced Sensor Systems and Applications V
Brian Culshaw; Yanbiao Liao; Anbo Wang; Xiaoyi Bao; Xudong Fan, Editor(s)

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