Research on Ultrasonic Hydrophone based on Polarization Properties of FBG

摘要：

　　We demonstrate a novel fiber-optic hydrophone that use a fiber Bragg grating(FBG)as a sensing element.The operation principle is based on the modulation of birefringence of the FBG by high-frequency ultrasound.By measuring the amplitude of the first Stokes parameters of the transmitted light in FBG using a in line polarimeter,the amplitude and frequency of acoustic pressure can be determined.The FBG hydrophone has a linear response to acoustic pressure,and the sensitivity and dynamic range of the sensor are studied.

关键词： acoustic sensor fiber Bragg grating polarization properties hydrophone

作者: Su Yang Zhang Baofu Zhou Hua Zhu Yong Wang Feng

作者单位: Institute of Communications Engineering,PLA University of Science and Technology,Nanjing Nanjing University

会议类型: 国际会议

会议名称: 2013 International Conference on Optical Instrument and Technology (OIT’2013)(2013年光学仪器与技术国际会议)

会议地点: 北京

会议语种:英文

页码: 1-7

在线出版日期: 2013-11-17（万方平台首次上网日期，不代表论文的发表时间）