An Optical Fiber Hydrophone Using Equivalent Phase Shift Fiber Bragg Grating for Underwater Acoustic Measurement

作     者：Shengye HU.ANG Xiaofeng JIN Jun ZHANG Yi CHEN Yuebin WANG Zhijun ZHOU Juan NI 

作者机构：Department of Information Science & Electronic Engineering Zhejiang University Hangzhou 310027 China Hangzhou Applied Acoustics Research Institute Hangzhou 310014 China 

出 版 物：《Photonic Sensors》 (光子传感器（英文版）)

年 卷 期：2011年第1卷第3期

页      码：289-294页

摘      要：An optical fiber hydrophone based on equivalent phase shift fiber Bragg grating （EPS-FBG） with temperature compensation package provides an improvement of sensitivity in underwater acoustic measurement at wide frequency range, from *** to 12kHz. The acoustic pressure is transduced into elastic vibration of a circle metal disk, resulting in an intensity modulation of the reflected light wave back from fiber Bragg grating （FBG）. Experiment shows that the 500 EPS-FBG hydrophone has a minimum detectable acoustic pressure of about at 5 kHz and achieves about 18-dB improvement of acoustic pressure sensitivity compared with a regular apodized FBG hydrophone.

主 题 词：Optical fiber hydrophone acoustic pressure sensitivity equivalent phase shift fiber Bragg grating temperature compensation package 

学科分类：080202[080202] 08[工学] 0802[工学-机械学] 

核心收录：

D　O　I：10.1007/s13320-011-0023-6

馆 藏 号：203504177...