A new DFB-fiber laser hydrophone  

作　　者：WANGJin-yu SUIQing-mei CHANGJun LIU Tong-yu MA Liang-zhu NI Jia-sheng 

机构地区：[1]LaserInstituteofShandongAcademyofScience,Jinan250014,China [2]ShandongMicro-ensorPhotonicsLtd,Jinan250014,China [3]SchoolofControlScienceandEngineering,ShandongUniversity,Jinan250061,China

出　　处：《Optoelectronics Letters》2007年第4期264-266,共3页光电子快报（英文版）

基　　金：Supported by China Scholarship Council, Natural Science Foun-dation of China (grant no.NSFC 60677027);Natural Science Foun-dation of Shandong Province of China (grant no.Y2006G08);Foundation for Doctoral Research of Shandong Academy of Sci-ence (grant no.2005-79).

摘　　要：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.

关 键 词：水诊器 激光技术 光学纤维 分布式反馈 

分 类 号：TN256[电子电信—物理电子学]