• Photonic Sensors
  • Vol. 7, Issue 3, 253 (2017)
Ming LI1、2, Zhihui SUN2, Xiaolei ZHANG2, Shujuan LI2, Zhiqiang SONG2, Meng WANG2, Jian GUO2, Jiasheng NI2, Chang WANG2、*, Gangding PENG3, and Xiangang XU1
Author Affiliations
  • 1State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, China
  • 2Jinan Research Center, Laser Institute of Shandong Academy of Sciences, Jinan, 250014, China
  • 3School of Electronic Engineering and Telecommunication, University of New South Wales, Sydney, 2052, Austrilia
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    DOI: 10.1007/s13320-017-0426-0 Cite this Article
    Ming LI, Zhihui SUN, Xiaolei ZHANG, Shujuan LI, Zhiqiang SONG, Meng WANG, Jian GUO, Jiasheng NI, Chang WANG, Gangding PENG, Xiangang XU. Development of High Sensitivity Eight-Element Multiplexed Fiber Laser Acoustic Pressure Hydrophone Array and Interrogation System[J]. Photonic Sensors, 2017, 7(3): 253 Copy Citation Text show less

    Abstract

    Fiber laser hydrophones have got widespread concerns due to the unique advantages and broad application prospects. In this paper, the research results of the eight-element multiplexed fiber laser acoustic pressure array and the interrogation system are introduced, containing low-noise distributed feedback fiber laser (DFB-FL) fabrication, sensitivity enhancement packaging, and interferometric signal demodulation. The frequency response range of the system is 10 Hz-10 kHz, the laser frequency acoustic pressure sensitivity reaches 115 dB re Hz/Pa, and the equivalent noise acoustic pressure is less than 60μPa Hz1/2. The dynamic range of the system is greater than 120 dB.
    Ming LI, Zhihui SUN, Xiaolei ZHANG, Shujuan LI, Zhiqiang SONG, Meng WANG, Jian GUO, Jiasheng NI, Chang WANG, Gangding PENG, Xiangang XU. Development of High Sensitivity Eight-Element Multiplexed Fiber Laser Acoustic Pressure Hydrophone Array and Interrogation System[J]. Photonic Sensors, 2017, 7(3): 253
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