Development of high sensitivity eight-element multiplexed fiber laser acoustic pressure hydrophone array and interrogation system
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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 10Hz–10kHz, 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.
KeywordsFiber laser hydrophone DFB-FL packaging sensitization eight-element multiplex interferometric demodulation
This work was financially supported by the National Natural Science Foundation of China (No. 60317101), Key Research and Development Plan of Shandong Province (No. 2015GSF11500), and Natural Science Foundation of Shandong Province (No. ZR2013FL029).
- Y. L’eguillon, K. H. Tow, P. Besnard, A. Mugnier, D. Pureur, and M. Doisy, “First demonstration of a 12 DFB fiber laser array on a 100 GHz ITU grid for underwater acoustic sensing application,” in Proceeding of SPIE Conference on Optical Sensing and Detection II, Brussels, Belgium, 2012, pp. 17.Google Scholar
- S. Foster, A. Tikhomirov, J. Harrison, and J. V. Velzen, “Field demonstration of an 8-element fibre laser hydrophone array,” in Proceeding of 23rd International Conference on Optical Fibre Sensors, Santander, Spain, 2014, pp. 91570H–1–91570H–4.Google Scholar
- F. X. Launay, R. Bouffaron, R. Lardat, G. Roux, M. Doisy, and C. Bergogne, “Acoustic antenna based on fiber laser hydrophones,” in Proceeding of 23rd International Conference on Optical Fibre Sensors, Santander, Spain, 2014, pp. 91570Y–1–91570Y–4.Google Scholar
- Q. Zhu, X. B. Chen, J. P. Chen, and G. D. Peng, “DFB fiber laser fabrication by moving phase mask,” Optical Fiber & Electric Cable & Their Applications, 2006, 1(1): 17–20.Google Scholar
- B. Tan and J. B. Huang, “Design about a novel encapsulation structure of DFB fiber laser hydrophones,” in Proceeding of International Symposium on Photonics and Optoelectronics, Suzhou, China, 2014, pp. 92330X–1–92330X–7.Google Scholar
- L. N. Ma, “Fiber laser hydrophone,” Ph.D. dissertation, National University of Defense Technology, Changsha, 2010.Google Scholar
- W. T. Zhang, F. Li, and Y. L. Liu, “Field test of an eight-element fiber laser hydrophone array,” in Proceeding of 22nd International Conference on Optical Fiber Sensors, Beijing, China, 2012, pp. 8421AX–1–8421AX–4.Google Scholar
- H. C. Gu, J. B. Huang, H. B. Yu, R. Z. Li, B. Tang, and J. Wu, “A 4-element fiber laser hydrophone towed linear array,” in Proceeding of International Symposium on Optoelectronic Technology and Application (IPTA)-Laser and Optical Measurement Technology and Fiber Optic Sensors, Beijing, China, 2014, pp. 92972Y–1–92972Y–6.Google Scholar
- D. Sacastru, S. Miclos, and I. Lancranjan, “Theoptical analysis of the output noise of a FDB fiber laser sensor,” International Journal of Mathematics & Computers in Simulation, 2010, 4(4): 116–123.Google Scholar
- H. Xu, C. Wang, G. D. Peng, X. L. Zhang, Y. Y. Ying, Z. H. Sun, et al., “A distributed feedback fiber laser hydrophone with high sensitivity and flat frenquency response,” Shandong Science, 2013, 26(4): 46–50.Google Scholar
- Y. Chen, J. Zhang, M. Zhang, and L. W. Wang, “Calibration of phase-shifted sensitivity of optical fiber hydrophone in the frequency range 20 Hz to 10 kHz,” Acta Optica Sinica, 2011, 40(11): 1686–1691.Google Scholar
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