Abstract
A new fiber optic hydrophone is described. based on a distributed feedback fiber laser (DFB-fiber laser) Experimental arrangement consists of DFB-FL, unbalanced Mach-Zehnder interferometer, piezoelectric (PZT) modulator, detection and feedback control circuit, and oscillograph. Experimental results show that the bare DFB-FL hydrophone is extremely sensitive to small perturbations in their environment and can acquire exact acoustic signals.
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Supported by China Scholarship Council, Natural Science Foundation of China (grant no NSFC 60677027), Natural Science Foundation of Shandong Province of China (grant no. Y2006G08), and Foundation for Doctoral Research of Shandong Academy of Science (grant no. 2005-79).
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Wang, Jy., Sui, Qm., Chang, J. et al. A new DFB-fiber laser hydrophone. Optoelectron. Lett. 3, 264–266 (2007). https://doi.org/10.1007/s11801-007-6169-1
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DOI: https://doi.org/10.1007/s11801-007-6169-1